title: Free 5-hydroxytryptamine in plasma: fact or artifact?
mesh_terms: D000328:Adult; D001792:Blood Platelets / Q000032:analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010949:Plasma / Q000032:analysis; D012701:Serotonin / Q000097:blood*
chemical_list: D012701:Serotonin