1. Prevention of preternn births: a perinatal study in Hagenau, France;Papiernik;Pediatrics,1985
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3. Maturation signs of the cervix and prediction of preterm birth;Bouyer;Obstet Gynecol,1986
4. Precocious cervical ripening and preterm labor;Papiernik;Obstet Gynecol,1986
5. The preterm cervix and preterm labor: relative risks, predictive values, and change over time;Stubbs;Am J Obstet Gynecol,1986