John O’Brien

Vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix: a multicenter, randomized, double‐blind, placebo‐controlled trial

Sonia S. Hassan, Roberto Romero, D. Vidyadhari et al. · Ultrasound in Obstetrics and Gynecology · 2011 · 924 citations · Full text

Medicine, Gynecology, Obstetrics +12

The management of placenta percreta: Conservative and operative strategies

John O’Brien, J R Barton, Elvis S. Donaldson · American Journal of Obstetrics and Gynecology · 1996 · 634 citations

Medicine, Gynecology, Obstetrics +5

Mild gestational hypertension remote from term: Progression and outcome

John R. Barton, John O’Brien, Niki K. Bergauer et al. · American Journal of Obstetrics and Gynecology · 2001 · 350 citations

Public Health, Obstetrics, Pediatrics +12

Progesterone vaginal gel for the reduction of recurrent preterm birth: primary results from a randomized, double‐blind, placebo‐controlled trial

John O’Brien, C. D. Adair, David F. Lewis et al. · Ultrasound in Obstetrics and Gynecology · 2007 · 295 citations · Full text

Medicine, Maternal Health, Obstetrics +14

Vaginal progesterone is associated with a decrease in risk for early preterm birth and improved neonatal outcome in women with a short cervix: a secondary analysis from a randomized, double‐blind, placebo‐controlled trial

E. A. De Franco, John O’Brien, C. D. Adair et al. · Ultrasound in Obstetrics and Gynecology · 2007 · 239 citations

Medicine, Maternal Health, Obstetrics +17