Pupillary mobility and skin colour.
D044383:Black People; D003116:Color; D006801:Humans; D010656:Phenylephrine / Q000494:pharmacology; D010858:Pigmentation; D011680:Pupil / Q000187:drug effects*; D014326:Tropanes / Q000494:pharmacology
D014326:Tropanes; D010656:Phenylephrine