1. Archer DF, Thomas RL: The fallacy of the post-pill amenorrhea syndrome. Clin Obstet Gynecol 24: 943–950, 1981
2. Buttram VC Jr, Vanderheyden JD, Besch PK, et al: Post “pill” amenorrhea. IntJFertil 19: 37–44, 1974
3. Golditch IM: Postcontraceptive amenorrhea. Obstet Gynecol 39: 903–908, 1972
4. Jacobs HS, Knuth UA, Hull MGR, et al: Post “pill” amenorrhea—cause or coincidence? Br Med J 2: 940–942, 1977
5. Shearman RP, Fraser IS: Impact of new diagnostic methods on the differential diagnosis and treatment of secondary amenorrhea. Lancet 1: 1195–1197, 1977