Prospective cohort study: whether or not patients benefit from participation itself in randomized-controlled trials

Hirofumi Mukai1, Shinji Ohno, Yasuo Ohashi

  • 1*Division of Oncology/Hematology, National Cancer Center Hospital East, 6-5-1, Kashiwanoha, Kashiwa-shi, Chiba, Japan. hrmukai@east.ncc.go.jp.

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