STAP cells paper co-author Sasai commits suicide

KOBE, Japan - Riken staff are surrounded by reporters on Aug. 5, 2014, in the western Japan city of Kobe, following the suicide of Yoshiki Sasai, deputy director of the Riken Center for Developmental Biology and a co-author of controversial research papers on so-called STAP cells.

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TOKYO, Japan - Isao Katsura, director general of the National Institute of Genetics and leader of a panel under the Riken research institute, attends a press conference in Tokyo on Dec. 26, 2014, to announce that the "STAP cells" that scientist Haruko Obokata, who left Riken on Dec. 21, claimed to have created were likely cells generated from embryonic stem cells.

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TOKYO, Japan - Isao Katsura (far R), director general of the National Institute of Genetics and leader of a panel under the Riken research institute, attends a press conference along with other panel members in Tokyo on Dec. 26, 2014, to announce that the "STAP cells" that scientist Haruko Obokata, who left Riken on Dec. 21, claimed to have created were likely cells generated from embryonic stem cells.

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TOKYO, Japan - Photo shows Haruko Obokata, a former researcher with the Riken research institute. A panel under the government-backed institute said Dec. 26, 2014, that the "STAP cells" that Obokata claimed to have created were likely cells generated from embryonic stem cells. Obokata left her job at Riken on Dec. 21.

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