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Relaxin secretion in in vitro fertilization pregnancies.
Haning RV Jr, Goldsmith LT, Seifer DB, Wheeler C, Frishman G, Sarmento J, Weiss G. Haning RV Jr, et al. Am J Obstet Gynecol. 1996 Jan;174(1 Pt 1):233-40. doi: 10.1016/s0002-9378(96)70400-3. Am J Obstet Gynecol. 1996. PMID: 8572013