Antibiotic Therapy Increases the Risk of Preterm Birth in Preterm Labor without Intra-Amniotic Microbes, but may Prolong the Gestation Period in Preterm Labor with Microbes, Evaluated by Rapid and High-Sensitive PCR System - Yoneda, S; Shiozaki, A; Yoneda, N (Am J Reprod Immunol, 2016)