[A new needle for spinal anesthesia].
D000293:Adolescent; D000328:Adult; D000368:Aged; D000775:Anesthesia, Spinal / Q000295:instrumentation* / Q000379:methods; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009339:Needles; D013129:Spinal Puncture / Q000295:instrumentation