title: The influence of light and dark on the catecholamine content of the retina and choroid.
mesh_terms: D000221:Adaptation, Ocular; D000818:Animals; D002829:Choroid / Q000032:analysis*; D003624:Darkness; D004298:Dopamine / Q000032:analysis*; D005470:Fluorometry; D006168:Guinea Pigs; D006651:Histocytochemistry; D008027:Light; D008297:Male; D008722:Methods; D009638:Norepinephrine / Q000032:analysis*; D051381:Rats; D012160:Retina / Q000032:analysis*; D013053:Spectrophotometry
chemical_list: D004298:Dopamine; D009638:Norepinephrine