RT Book, Section A1 Guo, Teddy SR Print(0) ID 1180384979 T1 Vaginal and intramuscular progesterone reduce high-risk singleton preterm birth T2 2 Minute Medicine YR 2015 FD 2015 PB McGraw Hill PP New York, NY SN LK accesspediatrics.mhmedical.com/updatesContent.aspx?gbosid=556471 RD 2024/03/28 AB