Effect of Entonox on reducing the need for Pethidine and the Relevant Fetal and Maternal Complications for Painless Labor

by Alireza Sharifian Attar, Atefe Shirinzadeh Feizabadi, Lida Jarahi, Laya Shirinzadeh Feizabadi, Shima Sheybani
Published 2016-12-01