title: Changes in milk composition during lactation in the guinea-pig, and the effect of prolactin.
mesh_terms: D000818:Animals; D005260:Female; D006168:Guinea Pigs / Q000502:physiology*; D007774:Lactation; D008892:Milk / Q000032:analysis*; D011247:Pregnancy; D011388:Prolactin / Q000494:pharmacology*
chemical_list: D011388:Prolactin