Risk factors for preterm premature rupture of fetal membranes: A multicenter case-control study

James H. Harger, Ann W. Hsing, Ruth Tuomala, Ronald S. Gibbs, Philip B. Mead, David A. Eschenbach, George Knox, B. Frank Polk

American Journal of Obstetrics and Gynecology · 1990 · 346 citations · 14 references

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