Perineal body length among different racial groups in the first stage of labor

Pai-Jong Stacy Tsai1, Ian A Oyama, Mark Hiraoka

  • 1Department of Obstetrics, Gynecology, and Women's Health, John A. Burns School of Medicine, University of Hawaii, 1319 Punahou St, Suite 824, Honolulu, HI 96826, USA. paijong@hawaii.edu

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