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Von Gruenigen VE, Coleman RL, Li AJ, Heard MC, Miller DS, Hemsell DL.Von Gruenigen VE, et al. Among authors: coleman rl.Obstet Gynecol. 2000 Jul;96(1):23-7. doi: 10.1016/s0029-7844(00)00850-4.Obstet Gynecol. 2000.PMID: 10862836