[Application and management on obstetrical analgesia during labor].
Liu
Xing-hui
XH
Wu
Lian-fang
LF
D016362:Analgesia, Obstetrical; D000700:Analgesics / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D048949:Labor Pain / Q000188:drug therapy*; D007743:Labor, Obstetric; D011247:Pregnancy
D000700:Analgesics