Forgotten bradykinin?
D001920:Bradykinin / Q000378:metabolism*; D002276:Carcinoid Tumor / Q000503:physiopathology*; D006801:Humans; D012701:Serotonin / Q000378:metabolism; D012867:Skin / Q000098:blood supply*; D013577:Syndrome / Q000503:physiopathology
D012701:Serotonin; D001920:Bradykinin