title: Effect of combined and repeated hormone treatment on the growth of the Tetrahymena.
mesh_terms: D000470:Alkaloids / Q000494:pharmacology; D000818:Animals; D004105:Diiodotyrosine / Q000494:pharmacology*; D026121:Indole Alkaloids; D012701:Serotonin / Q000494:pharmacology*; D013769:Tetrahymena pyriformis / Q000187:drug effects* / Q000254:growth & development
chemical_list: D000470:Alkaloids; D026121:Indole Alkaloids; D012701:Serotonin; D004105:Diiodotyrosine; C007884:gramine