Headache following spinal anesthesia; an attempt at its prevention by the use of the Antoni-Sise needle.
D000758:Anesthesia; D000775:Anesthesia, Spinal / Q000150:complications*; D000776:Anesthesiology; D035843:Biomedical Research; D006261:Headache / Q000209:etiology*; D009339:Needles
ANESTHESIA, SPINAL/complications; HEADACHE/etiology and pathogenesis