TI - FDa orders estrogen safety warnings PT - JOUR DP - 2003 TA - JAMA pages = {537-538}, VI - 289 IP - 5 AID - 10.1001/jama.289.5.537 [doi] 4100 - http://dx.doi.org/10.1001/jama.289.5.537 SO - JAMA February 5, 2003 289(5):537