Japanese Researcher, an Author of a Discredited Stem Cell Study, Is Dead Yoshiki Sasai, right, was a co-author of a highly publicized paper on stem cells. A protégée and lead author, Haruko Obokata, left, came under intense criticism after the paper's errors came to light.Credit...Kyodo/Reuters A leading Japanese life science researcher and co-author of a stem cell study that was later retracted b
![Japanese Researcher, an Author of a Discredited Stem Cell Study, Is Dead (Published 2014)](https://cdn-ak-scissors.b.st-hatena.com/image/square/21ab5d672dd0ea4e1762f8c95a998b90131b91da/height=288;version=1;width=512/https%3A%2F%2Fstatic01.nyt.com%2Fimages%2F2014%2F08%2F06%2Fbusiness%2F06stem-pic1%2F06stem-pic1-articleLarge-v2.jpg%3Fyear%3D2014%26h%3D419%26w%3D600%26s%3D66fbf5020bb298a17fcbcf2928c4f0fba552163b9477871e315caf62e291f10d%26k%3DZQJBKqZ0VN)