[The measurement of lumbar resistance by the drip infusion epidural indicator].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000767:Anesthesia, Epidural / Q000379:methods*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011312:Pressure