All-trans retinoic acid (ATRA) is a form of Vitamin A which is used to treat one particular type of leukemia. This group tested it against some gastric cancer c

All-trans retinoic acid (ATRA) is a form of Vitamin A which is used to treat one particular type of leukemia. This group tested it against some gastric cancer cells. Not sure why it's on the front page of HN.