article 1979 Relief of dysmenorrhea with the prostaglandin synthetase inhibitor ibuprofen: Effect on prostaglandin levels in menstrual fluid ·doi:10.1016/s0002-9378(79)80026-5
article 1962 Endocrine Factors in Certain Pathological Conditions of Pregnancy and Labour ·doi:10.3109/00016346209157172