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Clinical Endocrinology|March 1, 1981
Effects of ethinyloestradiol on plasma levels of pituitary gonadotrophins, testicular steroids and sex hormone binding globulin in normal menP F Van Look, M FrölichHuman Reproduction Update|January 1, 1995
Clinical uses of antiprogestogensP F Van Look, H von HertzenThe Journal of Endocrinology|June 1, 1979
Plasma concentrations of luteinizing hormone and follicle-stimulating hormone during anoestrus in ewes actively immunized against oestradiol-17 beta, oestrone or testosteroneN D Martensz, R J Scaramuzzi, P F Van LookEuropean Journal of Obstetrics, Gynecology, and Reproductive Biology|October 1, 1981
Effect of ampicillin or amoxycillin administration on plasma and urinary estrogen levels during normal pregnancyP F Van Look, M Top-Huisman, H P GnoddeJournal of Reproduction and Fertility|July 1, 1980
Ovarian morphology and the concentration of steroids, and of gonadotrophins during the breeding season in ewes actively immunized against oestradiol-17 beta or oestroneR J Scaramuzzi, N D Martensz, P F Van LookThe Cochrane Database of Systematic Reviews|May 5, 2000
Interventions for emergency contraceptionL Cheng, A M Gülmezoglu, E Ezcurra, et al.Steroids|December 8, 2000
The use of progesterone antagonists and progesterone receptor modulators in contraceptionI M Spitz, P F Van Look, H J Coelingh BenninkJournal of Reproduction and Fertility|July 1, 1979
Effect of androstenedione on the oestrous cycle of the ratH P Gnodde, J A van Dieten, P F Van LookPageof 31