Electron microscopic localization of 5-hydroxytryptamine (5HT).
D000818:Animals; D002838:Chromaffin System / Q000166:cytology*; D004386:Duodenum / Q000166:cytology*; D066298:In Vitro Techniques; D008297:Male; D008854:Microscopy, Electron; D009092:Mucous Membrane / Q000166:cytology*; D051381:Rats; D012701:Serotonin
D012701:Serotonin