title: Spinal manipulation and beta-endorphin: a controlled study of the effect of a spinal manipulation on plasma beta-endorphin levels in normal males.
mesh_terms: D006801:Humans; D008297:Male; D008349:Manipulation, Orthopedic; D013122:Spinal Diseases / Q000628:therapy*; D001615:beta-Endorphin / Q000097:blood*
chemical_list: D001615:beta-Endorphin