Chromaffin tissue in the adrenal gland of the toad, Bufo arenarum Hensel.
D000311:Adrenal Glands / Q000166:cytology*; D000818:Animals; D001001:Anura; D002838:Chromaffin System / Q000166:cytology*; D003593:Cytoplasm; D006651:Histocytochemistry; D008297:Male; D008854:Microscopy, Electron