Smooth muscle stimulants from the gastrointestinal tract; identification of 5-hydroxytryptamine and its distinction from substance P.
D041981:Gastrointestinal Tract; D006801:Humans; D007211:Indoles / Q000031:analogs & derivatives; D009130:Muscle, Smooth; D012701:Serotonin; D013373:Substance P
D007211:Indoles; D012701:Serotonin; D013373:Substance P; C030374:indole
GASTROINTESTINAL SYSTEM; INDOLE/derivatives