Safety and efficacy of a combination of pethidine and levallorphan for pain relief during labor: An observational study
Journal of Obstetrics and Gynaecology Research, EarlyView.
Source: Journal of Obstetrics and Gynaecology Research - Category: OBGYN Authors: Masato Kinugasa,
Mayu Miyake,
Hanako Tamai,
Maki Tamura Source Type: research