Read Ohio State's news release about Retchin's resignation here.

A statement from Retchin issued through Ohio State was more strongly worded. In response to the letters, he wrote, "I must clear my name and address these preposterous allegations by simply and unequivocally stating that they are untrue. These baseless accusations have damaged me and the University I love." He said he will take a leave of absence "and then will assume a new role at the University to pursue health policy research and teaching."