TI - OBstetrics. PT - JOUR DP - 1909 TA - Journal of the American Medical Association pages = {1586}, VI - LIII IP - 19 AID - 10.1001/jama.1909.02550190062032 [doi] 4100 - http://dx.doi.org/10.1001/jama.1909.02550190062032 SO - Journal of the American Medical Association November 6, 1909 LIII(19):1586