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Gray RH. Natural family planning and sex selection: fact or fiction? Department of Population Dynamics, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, MD 21205.

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Padmanabhan V, Lang LL, Sonstein J, Kelch RP, Beitins IZ. Modulation of serum follicle-stimulating hormone bioactivity and isoform distribution by estrogenic steroids in normal women and in gonadal dysgenesis. Department of Pediatrics, University of Michigan, Ann Arbor 48109.

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Chen HF, Shew JY, Chao KH, Chang LJ, Ho HN, Yang YS. Luteinizing hormone up-regulates the expression of interleukin-1 beta mRNA in human granulosa-luteal cells. Am J Reprod Immunol 2000 Mar;43(3):125-33. National Taiwan University Hospital, Department of Obstetrics and Gynecology, Taipei.

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