Proactive neonatal treatment at 22 weeks of gestation: a systematic review and meta-analysis.
Backes CH, Rivera BK, Pavlek L, Beer LJ, Ball MK, Zettler ET, Smith CV, Bridge JA, Bell EF, Frey HA. Proactive neonatal treatment at 22 weeks of gestation: a systematic review and meta-analysis. Am J Obstet Gynecol. 2021 02; 224(2):158-174.