The paramedian approach to the epidural space. Technique and choice of needle.
D000328:Adult; D000767:Anesthesia, Epidural / Q000379:methods*; D000773:Anesthesia, Obstetrical; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D009339:Needles; D011247:Pregnancy