Spinal anesthesia using a 32-gauge needle.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000775:Anesthesia, Spinal / Q000009:adverse effects / Q000295:instrumentation*; D002648:Child; D004388:Dura Mater / Q000293:injuries; D006261:Headache / Q000209:etiology; D006801:Humans; D007278:Injections, Spinal; D008875:Middle Aged; D013346:Subarachnoid Space