Mehmet GÜÇLÜ, Nazan YURTCU, Samettin ÇELİK, Canan SOYER ÇALIŞKAN, Şafak HATIRNAZ, Handan ÇELİK
Journal of Experimental and Clinical Medicine
594-598
obstetric analgesia, meperidine, normal vaginal delivery, stages of labor, obstetric lacerations, neonatal outcome