Citations for: Segmuller, B. E.; Armstrong, B. L.; Dunphy, R.; Oyler, A. R. Identification of Autoxidation and Photodegradation Products of Ethynylestradiol by on-Line HPLC-NMR and HPLC-MS. J. Pharm. Biomed. Anal. 2000, 23 (5), 927–937.