Comment to the letter: The effects of progesterone in women undergoing preterm labor

[1] El-refaie W(2015)Vaginal progesterone for prevention of preterm labor in asymptomatic twin pregnancies with sonographic short cervix: a randomized clinical trial of efficacy and safety Arch Gynecol Obstet 287 1059-1066

[2] Abdelhafez MS(2013)Progestogens for preterm birth prevention: a systematic review and meta-analysis by drug route Arch Gynecol Obstet 1 CD006770-31

[3] Badawy A(2014)Progestational agents for treating threatened or established preterm labour Cochrane Database Syst Rev 38 18-424

[4] Velez Edwards DR(2011)Vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix: a multicenter, randomized, double-blind, placebo-controlled trial Ultrasound Obstet Gynecol 188 419-undefined

[5] Likis FE(2003)Prophylactic administration of progesterone by vaginal suppository to reduce the incidence of spontaneous preterm birth in women at increased risk: a randomized placebo-controlled double-blind study Am J Obstet Gynecol undefined undefined-undefined

[6] Andrews JC(undefined)undefined undefined undefined undefined-undefined

[7] Woodworth AL(undefined)undefined undefined undefined undefined-undefined

[8] Jerome RN(undefined)undefined undefined undefined undefined-undefined

[9] Fonnesbeck CJ(undefined)undefined undefined undefined undefined-undefined

[10] Su LL(undefined)undefined undefined undefined undefined-undefined

[1] El-refaie W(2015)Vaginal progesterone for prevention of preterm labor in asymptomatic twin pregnancies with sonographic short cervix: a randomized clinical trial of efficacy and safety Arch Gynecol Obstet 287 1059-1066

[2] Abdelhafez MS(2013)Progestogens for preterm birth prevention: a systematic review and meta-analysis by drug route Arch Gynecol Obstet 1 CD006770-31

[3] Badawy A(2014)Progestational agents for treating threatened or established preterm labour Cochrane Database Syst Rev 38 18-424

[4] Velez Edwards DR(2011)Vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix: a multicenter, randomized, double-blind, placebo-controlled trial Ultrasound Obstet Gynecol 188 419-undefined

[5] Likis FE(2003)Prophylactic administration of progesterone by vaginal suppository to reduce the incidence of spontaneous preterm birth in women at increased risk: a randomized placebo-controlled double-blind study Am J Obstet Gynecol undefined undefined-undefined

[6] Andrews JC(undefined)undefined undefined undefined undefined-undefined

[7] Woodworth AL(undefined)undefined undefined undefined undefined-undefined

[8] Jerome RN(undefined)undefined undefined undefined undefined-undefined

[9] Fonnesbeck CJ(undefined)undefined undefined undefined undefined-undefined

[10] Su LL(undefined)undefined undefined undefined undefined-undefined