title: An improved method of epidural analgesia with reduced instrumental delivery rate.
mesh_terms: D000767:Anesthesia, Epidural / Q000379:methods*; D000773:Anesthesia, Obstetrical / Q000379:methods*; D001034:Apgar Score; D002045:Bupivacaine / Q000008:administration & dosage*; D002404:Catheterization / Q000295:instrumentation; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007267:Injections / Q000295:instrumentation; D008722:Methods; D011247:Pregnancy
chemical_list: D002045:Bupivacaine