[Certain methods of improvement of labor analgesia].
D000698:Analgesia; D000700:Analgesics / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D011247:Pregnancy; D014937:Work
D000700:Analgesics
ANALGESICS/therapeutic use; LABOR
O nekotorykh metodakh povosheniia effektivnosti obezbolivaniia rodov.