title: Blood levels of 5-Hydroxytryptamine in human beings under several physiological situations.
mesh_terms: D000328:Adult; D000367:Age Factors; D000531:Altitude; D005260:Female; D006801:Humans; D000860:Hypoxia / Q000097:blood*; D008297:Male; D008593:Menopause; D008875:Middle Aged; D012701:Serotonin / Q000097:blood*; D012737:Sex Factors
chemical_list: D012701:Serotonin