title: Daily variations in pigeon cropsac responses to prolactin.
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001681:Biological Assay; D002940:Circadian Rhythm; D010856:Columbidae; D003426:Crop, Avian / Q000187:drug effects*; D011388:Prolactin / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D011388:Prolactin