title: Seasonal variations in circadian levels of serum prolactin in striped mullet, Mugil cephalus.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D005399:Fishes / Q000097:blood*; D011388:Prolactin / Q000097:blood*; D011863:Radioimmunoassay; D012621:Seasons
chemical_list: D011388:Prolactin