Faked Finds: Human stem cell work is discredited

DNA evidence indicates that South Korean scientist Woo Suk Hwang fabricated data in studies purporting to show that he had cloned human embryos and derived stem cells from them, Seoul National University investigators say. A March 12, 2004 Science paper vaulted Hwang to fame, but the DNA in stem cells remaining from that experiment doesn’t match that from the embryonic cells shown in the report, indicating that the results were faked.