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低線量率被ばく時における放射線感受性のモデル解析

Research Project

Project/Area Number 16J07497
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Biophysics
Research InstitutionHokkaido University

Principal Investigator

松谷 悠佑  北海道大学, 大学院保健科学研究院, 特別研究員(DC2)

Project Period (FY) 2016-04-22 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2017: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2016: ¥700,000 (Direct Cost: ¥700,000)
Keywords線量率効果 / 細胞周期 / 放射線感受性 / 細胞間シグナリング / DNA修復 / 数理モデル / 細胞生存率 / 放射線高感受性
Outline of Annual Research Achievements

最終年度は、長時間の電離放射線(X線)被ばく後の放射線感受性について細胞実験とモデル解析を用いた複合的手法で調査し、低線量被ばく時の細胞応答の数理モデル構築にも着手した。これら成果の一部は、国内・国際会議で発表するとともに、自然科学および臨床研究のあらゆる領域を対象にした学術誌にて主に報告した。
長時間X線照射中の放射線感受性の調査については、3.0 Gy/hと6.0 Gy/hと同等の2種類の多分割照射法を追加使用し、長時間照射中の細胞周期の変化を調べた。核内DNA量の結果から、6.0 Gy/h照射時には照射開始後10時間まで細胞周期に有意な変化は認められない一方、3.0 Gy/h照射時には、照射中にS期の細胞割合が優位に増加するとともに放射線抵抗性が誘導されることがわかった。これはS期細胞の割合の増加による照射間DNA修復能率の増加により説明し得ることが数理モデルの解析によって示された。このモデル解析の妥当性は、上記の連続的照射条件だけでなく、急性照射条件下でも確認し、S期細胞割合依存の放射線抵抗性誘導について議論するに至った。
低線量被ばく時の細胞応答の数理モデルの開発については、照射細胞と非照射細胞間のシグナル効果を前年度開発したモデルに組み込んだ。構築したモデルは、照射細胞から放出されるシグナル濃度、シグナル誘発DNA損傷数、細胞生存率(培地経由型バイスタンダー効果も含む)の文献データを再現することに成功した。この数理モデルを使用することにより、シグナル誘発DNA損傷の修復能率の違いがもたらす低線量放射線高感受性現象への影響を評価することができることを提示した。
本年度の研究成果により、逆線量率効果(放射線感受性の逆転現象)ならびに低線量被ばく下の細胞応答(DNA修復能と生存率の関係)について、部分的ではあるがメカニズムの解明ができたと考えている。

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (52 results)

All 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 4 results,  Acknowledgement Compliant: 1 results) Presentation (44 results) (of which Int'l Joint Research: 20 results)

  • [Int'l Joint Research] CCRCB, Queen's University Belfast(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Estimation of the radiation-induced DNA double-strand breaks number considering cell cycle and absorbed dose per cell nucleus2018

    • Author(s)
      R. Mori, Y. Matsuya, Y. Yoshii, H. Date
    • Journal Title

      Journal of Radiation Research

      Volume: 印刷中 Issue: 3 Pages: 253-260

    • DOI

      10.1093/jrr/rrx097

    • NAID

      120006488426

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Integrated Modelling of Cell Responses after Irradiation for DNA-Targeted Effects and Non-Targeted Effects2018

    • Author(s)
      Yusuke Matsuya, Kohei Sasaki, Yuji Yoshii, Go Okuyama and Hiroyuki Date
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 1-14

    • DOI

      10.1038/s41598-018-23202-y

    • NAID

      120006463569

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inorganic polyphosphate enhances radio-sensitivity in a human non-small cell lung cancer cell line, H12992017

    • Author(s)
      Tsutsumi Kaori、Matsuya Yusuke、Sugahara Tomoki、Tamura Manami、Sawada Satoshi、Fukura Sagiri、Nakano Hisashi、Date Hiroyuki
    • Journal Title

      Tumor Biology

      Volume: 39 Issue: 6 Pages: 101042831770503-101042831770503

    • DOI

      10.1177/1010428317705033

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Markov chain Monte Carlo analysis for the selection of a cell-killing model under high-dose-rate irradiation2017

    • Author(s)
      Matsuya Yusuke、Kimura Takaaki、Date Hiroyuki
    • Journal Title

      Medical Physics

      Volume: 44 Issue: 10 Pages: 5522-5532

    • DOI

      10.1002/mp.12508

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Educational Activity for the Radiation Emergency System in the Northern Part of Japan: Meeting Report on “The 3rd Educational Symposium on Radiation and Health (ESRAH) by Young Scientists in 2016”2017

    • Author(s)
      Y. Matsuya, T. Tsujiguchi, M. Yamaguchi, T. Kimura, R. Mori, R. Yamada, R. Saga, Y. Fujishima, H. Date
    • Journal Title

      Radiation Research

      Volume: -

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Modeling cell survival and change in amount of DNA during protracted irradiation2016

    • Author(s)
      Y. Matsuya, K. Tsutsumi, K. Sasaki, Y. Yoshii, T. Kimura, H. Date
    • Journal Title

      Journal of Radiation Research

      Volume: - Issue: 3 Pages: 1-11

    • DOI

      10.1093/jrr/rrw110

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 細胞周期依存性ならびに線量依存性を組み込んだDNA二本鎖切断発生数推定モデル2017

    • Author(s)
      森諒輔, 松谷悠佑, 吉井勇治, 伊達広行
    • Organizer
      第73回日本放射線技術学会総会学術大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Evaluation of oxygen enhancement ratio calculated by the cell survival curves based on microdosimetric-kinetic model2017

    • Author(s)
      Ryota Yamada, Yusuke Matsuya, Hiroyuki Date
    • Organizer
      第113回日本医学物理学会学術大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Investigation of cell survival under protracted exposure for various dose rates in consideration of cell cycle distribution2017

    • Author(s)
      Yusuke Matsuya, Stephen J. McMahon, Kaori Tsutsumi, Kohei Sasaki, Yuji Yoshii, Ryosuke Mori, Joma Oikawa, Hiroyuki Date, Kevin M. Prise
    • Organizer
      日本放射線影響学会第60回大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Computational model for predicting the change of cell cycle distribution during protracted irradiation2017

    • Author(s)
      Joma Oikawa, Yusuke Matsuya, Ryosuke Mori, Tetsuya Sakashita, Hiroyuki Date
    • Organizer
      日本放射線影響学会第60回大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 放射線物理生物モデルを利用した炎症関連放射線抵抗性に関するメカニズム解析2017

    • Author(s)
      高橋玲,嵯峨涼,松谷悠佑,細川洋一郎
    • Organizer
      第7回東北放射線医療技術学術大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 光子線・電子線による微視的線量付与のモンテカルロシミュレーション解析2017

    • Author(s)
      谷内淑恵,吉井勇治,松谷悠佑,伊達広行
    • Organizer
      日本放射線技術学会 第73回北海道部会秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] X線誘発DNA二本鎖切断の空間分布に対するin vitro実験とモデル解析2017

    • Author(s)
      大島洋輔,森諒輔,松谷悠佑,吉井勇治,伊達広行
    • Organizer
      日本放射線技術学会 第73回北海道部会秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Evaluation of G2-block of cell cycle progression during a low-dose-rate exposure in mammalian cell line2017

    • Author(s)
      Joma Oikawa, Yusuke Matsuya, Ryosuke Mori, Hiroyuki Date
    • Organizer
      The 3rd symposium of Faculty of Health Sciences (FHS)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Computational estimation of the number of DNA double-strand breaks per nucleus in mammalian cells after X-ray exposure in consideration of cell cycle2017

    • Author(s)
      Ryosuke Mori, Yusuke Matsuya, Yuji Yoshii, Hiroyuki Date
    • Organizer
      The 3rd symposium of Faculty of Health Sciences (FHS)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of OER in consideration of LET and oxygen partial pressure by the Microdosimetric-Kinetic model2017

    • Author(s)
      Ryota Yamada, Yusuke Matsuya, Hiroyuki Date
    • Organizer
      The 3rd symposium of Faculty of Health Sciences (FHS)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of the IMK model to cell survival curves following the exposure to intensity modulated radiation fields2017

    • Author(s)
      Yusuke Matsuya, Stephen J. McMahon, Kevin M. Prise, Hiroyuki Date
    • Organizer
      The 43rd Annual Meeting of the European Radiation Research Society
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A model analysis to estimate the number of DNA double-strand breaks in cells exposed to X-rays2017

    • Author(s)
      Ryosuke Mori, Yusuke Matsuya, Yuji Yoshii, Hiroyuki Date
    • Organizer
      The 43rd Annual Meeting of the European Radiation Research Society
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Modelling of oxygen enhancement ratio in consideration of LET and oxygen partial pressure by using a microdosimetric-kinetic model2017

    • Author(s)
      Ryota Yamada, Yusuke Matsuya, Hiroyuki Date
    • Organizer
      The 43rd Annual Meeting of the European Radiation Research Society
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A simulation study for both of the targeted and untargeted effect on the uniformly irradiated cells.2017

    • Author(s)
      Kohei Sasaki, Yusuke Matsuya, Yuji Yoshii, Tetsuya Sanada, Yuji Yaegashi, Hiroyuki Date
    • Organizer
      The 43rd Annual Meeting of the European Radiation Research Society
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of intercellular signalling on sub-lethal damage repair between fractionation doses following intensity modulated radiation field2017

    • Author(s)
      Yusuke Matsuya, Stephen J. McMahon, Mihaela Ghita, Kevin M. Prise
    • Organizer
      The 4th meeting of educational symposium of radiation and health (ESRAH)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mathematical estimation of the number of DNA double-strand breaks induced by radiation exposure2017

    • Author(s)
      Ryosuke Mori, Yusuke Matsuya, Yuji Yoshii, Hiroyuki Date
    • Organizer
      The 4th meeting of educational symposium of radiation and health (ESRAH)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of OER by function considering variation of LET, dose rate and oxygen partial pressure2017

    • Author(s)
      RyotaYamada, Yusuke Matsuya, Hiroyuki Date
    • Organizer
      The 4th meeting of educational symposium of radiation and health (ESRAH)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Biophysical modeling for targeted and non-targeted effects on cells after irradiation2016

    • Author(s)
      Y. Matsuya, K. Sasaki, Y. Yoshii, H. Date
    • Organizer
      The 22nd International Conference on Medical Physics (ICMP) 2016
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      2016-12-09
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimization of the irradiation scheme in radiotherapy focusing on the dose and dose rate to the tumor and organs at risk2016

    • Author(s)
      R. Yamada, Y. Matsuya, H. Date
    • Organizer
      The 22nd International Conference on Medical Physics (ICMP) 2016
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      2016-12-09
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Probability estimation of radiation-induced DNA double-strand breaks in the cell nucleus2016

    • Author(s)
      R. Mori, Y. Matsuya, Y. Yoshii, H. Date
    • Organizer
      The 22nd International Conference on Medical Physics (ICMP) 2016
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      2016-12-09
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 放射線の長時間照射中における細胞周期と放射線感受性の解析2016

    • Author(s)
      松谷悠佑, 堤香織, 佐々木恒平, 吉井勇治, 森諒輔, 及川青亮, 伊達広行
    • Organizer
      日本放射線技術学会 第72回北海道部会秋季大会
    • Place of Presentation
      とかちプラザ, 帯広, 北海道
    • Year and Date
      2016-11-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] 標的・非標的効果を考慮した低線量X線被ばく後の細胞生存率モデル2016

    • Author(s)
      松谷悠佑, 佐々木恒平, 吉井勇治, 木村尭朗, 伊達広行
    • Organizer
      日本放射線技術学会 第72回北海道部会秋季大
    • Place of Presentation
      とかちプラザ, 帯広, 北海道
    • Year and Date
      2016-11-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] 診断用X線によって生じる複雑なDNA二本鎖切断の推定2016

    • Author(s)
      吉井勇治, 松谷悠佑, 佐々木恒平, 森諒輔, 伊達広行
    • Organizer
      日本放射線技術学会 第72回北海道部会秋季大会
    • Place of Presentation
      とかちプラザ, 帯広, 北海道
    • Year and Date
      2016-11-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] 水中電子線トラック解析における電子衝突断面積の影響2016

    • Author(s)
      木村尭朗, 松谷悠佑, 吉井勇治, 伊達広行
    • Organizer
      日本放射線技術学会 第72回北海道部会秋季大会
    • Place of Presentation
      とかちプラザ, 帯広, 北海道
    • Year and Date
      2016-11-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] 細胞核内DNA量と二次電子エネルギー付与を考慮した放射線影響モデル2016

    • Author(s)
      森諒輔, 松谷悠佑, 吉井勇治, 伊達広行
    • Organizer
      日本放射線技術学会 第72回北海道部会秋季大会
    • Place of Presentation
      とかちプラザ, 帯広, 北海道
    • Year and Date
      2016-11-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] 再酸素化腫瘍に対する酸素増感比の不確定性の評価2016

    • Author(s)
      山田亮太, 松谷悠佑, 伊達広行
    • Organizer
      日本放射線技術学会 第72回北海道部会秋季大会
    • Place of Presentation
      とかちプラザ, 帯広, 北海道
    • Year and Date
      2016-11-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] 放射線治療計画におけるLQモデルパラメータの不確定性評価2016

    • Author(s)
      國分塁, 木村尭朗, 松谷悠佑, 伊達広行
    • Organizer
      日本放射線技術学会 第72回北海道部会秋季大会
    • Place of Presentation
      とかちプラザ, 帯広, 北海道
    • Year and Date
      2016-11-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] 低線量率長時間照射における細胞周期の動態解析2016

    • Author(s)
      及川青亮, 松谷悠佑, 森諒輔, 伊達広行
    • Organizer
      日本放射線技術学会 第72回北海道部会秋季大会
    • Place of Presentation
      とかちプラザ, 帯広, 北海道
    • Year and Date
      2016-11-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] Non-Targeted Effectを含めた細胞生存率に対する数理モデルの開発2016

    • Author(s)
      松谷悠佑、佐々木恒平、吉井勇治、伊達広行
    • Organizer
      日本放射線影響学会第59回大会
    • Place of Presentation
      JMSアステールプラザ, 広島
    • Year and Date
      2016-10-26
    • Related Report
      2016 Annual Research Report
  • [Presentation] 放射線誘発核内DNA二本鎖切断の発生確率分布の推定2016

    • Author(s)
      森諒輔、松谷悠佑、吉井勇治、伊達広行
    • Organizer
      日本放射線影響学会第59回大会
    • Place of Presentation
      JMSアステールプラザ, 広島
    • Year and Date
      2016-10-26
    • Related Report
      2016 Annual Research Report
  • [Presentation] 照射・非照射細胞混在環境を模擬した確率的モデルによる細胞応答に関する研究2016

    • Author(s)
      佐々木恒平、松谷悠佑、吉井勇治、伊達広行
    • Organizer
      日本放射線影響学会第59回大会
    • Place of Presentation
      JMSアステールプラザ, 広島
    • Year and Date
      2016-10-26
    • Related Report
      2016 Annual Research Report
  • [Presentation] Estimation of DNA damage kinetics in both targeted and nontargeted cells using a stochastic model with the microdosimetric analysis2016

    • Author(s)
      K. Sasaki, Y. Matsuya, H. Date
    • Organizer
      The 62nd Radiation Research Society (RRS) Annual Meeting
    • Place of Presentation
      Waikoloa, Hawaii
    • Year and Date
      2016-10-16
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Cell-killing Model of Targeted and Non-Targeted Effects Based on Microdosimetry and Biological Processes2016

    • Author(s)
      Y. Matsuya, K. Sasaki, Y. Yoshii, G. Okuyama, T. Kimura, H. Date
    • Organizer
      The 3rd meeting of educational symposium of radiation and health (ESRAH)
    • Place of Presentation
      Sapporo, Hokkaido, Japan
    • Year and Date
      2016-10-01
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Probability of radiation-induced DNA double-strand breaks in statistical considerations for radiation energy deposition and cell cycle2016

    • Author(s)
      R. Mori, Y. Matsuya, Y. Yoshii, H. Date
    • Organizer
      The 3rd meeting of educational symposium of radiation and health (ESRAH)
    • Place of Presentation
      Sapporo, Hokkaido, Japan
    • Year and Date
      2016-10-01
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Uncertainty assessment of OER for reoxygenated tumor2016

    • Author(s)
      R. Yamada, Y. Matsuya, H. Date
    • Organizer
      The 3rd meeting of educational symposium of radiation and health (ESRAH)
    • Place of Presentation
      Sapporo, Hokkaido, Japan
    • Year and Date
      2016-10-01
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impacts of electron collision cross sections on electron track simulations in liquid water2016

    • Author(s)
      T. Kimura, Y. Matsuya, Y. Yoshii, H. Date
    • Organizer
      The 3rd meeting of educational symposium of radiation and health (ESRAH)
    • Place of Presentation
      Sapporo, Hokkaido, Japan
    • Year and Date
      2016-10-01
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of the dose-rate effects on cell viability for various dose rates considering G2 accumulation of cell cycle2016

    • Author(s)
      Y. Matsuya, K. Sasaki, Y. Yoshii, T. Kimura, R. Mori, H. Date
    • Organizer
      第112回日本医学物理学会学術大会
    • Place of Presentation
      沖縄コンベンションセンター, 沖縄
    • Year and Date
      2016-09-08
    • Related Report
      2016 Annual Research Report
  • [Presentation] A calculation model of radiation-induced complex DNA double-strand break based on clustering properties of the electron processes2016

    • Author(s)
      Y. Yoshii, Y. Matsuya, R. Mori, K. Sasaki, H. Date
    • Organizer
      第112回日本医学物理学会学術大会
    • Place of Presentation
      沖縄コンベンションセンター, 沖縄
    • Year and Date
      2016-09-08
    • Related Report
      2016 Annual Research Report
  • [Presentation] A revisional study of the cell survival curve after irradiation: influences of the survival model and determination method of parameters2016

    • Author(s)
      山田亮太、木村尭朗、松谷悠佑、伊達広行
    • Organizer
      第112回日本医学物理学会学術大会
    • Place of Presentation
      沖縄コンベンションセンター, 沖縄
    • Year and Date
      2016-09-08
    • Related Report
      2016 Annual Research Report
  • [Presentation] Estimation of DNA double-strand breaks based on DNA amount per cell nucleus2016

    • Author(s)
      森諒輔、松谷悠佑、吉井勇治、伊達広行
    • Organizer
      第112回日本医学物理学会学術大会
    • Place of Presentation
      沖縄コンベンションセンター, 沖縄
    • Year and Date
      2016-09-08
    • Related Report
      2016 Annual Research Report
  • [Presentation] Mathematical analysis of the cell viability under low dose-rate exposure: the change of DNA amount during the protracted irradiation2016

    • Author(s)
      Y. Matsuya, K. Tsutsumi, K. Sasaki, Y. Yoshii, T. Kimura, H. Date
    • Organizer
      42nd Annual Meeting of the European Radiation Research Society
    • Place of Presentation
      Royal Tropical Institute, Amsterdam, Netherlands
    • Year and Date
      2016-09-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Determination of cell surviving fraction for radiotherapy in fractionated irradiation considering dose rates and repopulation of tumor cells2016

    • Author(s)
      T. Kimura, Y. Matsuya, H. Date
    • Organizer
      42nd Annual Meeting of the European Radiation Research Society
    • Place of Presentation
      Royal Tropical Institute, Amsterdam, Netherlands
    • Year and Date
      2016-09-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of cell-killing based on the probability density of DNA contents in cell population2016

    • Author(s)
      Y. Matsuya, K. Tsutsumi, K. Sasaki, Y. Yoshii, H. Date.
    • Organizer
      第111回日本医学物理学会学術大会
    • Place of Presentation
      パシフィコ横浜, 横浜
    • Year and Date
      2016-04-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Determination of the cell survival curve considering the lethal lesion number per nucleus after irradiation2016

    • Author(s)
      山田亮太, 松谷悠佑, 木村尭朗, 伊達広行
    • Organizer
      第111回日本医学物理学会学術大会
    • Place of Presentation
      パシフィコ横浜, 横浜
    • Year and Date
      2016-04-14
    • Related Report
      2016 Annual Research Report

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Published: 2016-05-17   Modified: 2024-03-26  

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