Gray hair and sympathectomy. Report of a case.
D000109:Acetylcholine / Q000494:pharmacology; D005260:Female; D006197:Hair; D006801:Humans; D008875:Middle Aged; D009638:Norepinephrine / Q000473:pathology; D010858:Pigmentation; D013562:Sympathectomy
D000109:Acetylcholine; D009638:Norepinephrine