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Start Over Collections Medicine in the Americas, 1610-1920 ✖Remove constraint Collections: Medicine in the Americas, 1610-1920 Subjects Genitalia, Female -- physiology ✖Remove constraint Subjects: Genitalia, Female -- physiology Titles Peristalsis of the genital tract, and a new theory to explain relaxation of the vaginal outlet during labor ✖Remove constraint Titles: Peristalsis of the genital tract, and a new theory to explain relaxation of the vaginal outlet during labor

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