title: Erythropoietic activity in Rana pipiens--the influence of nutrition and season on spleen and peripheral blood activities.
mesh_terms: D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001001:Anura; D001835:Body Weight; D004032:Diet; D004920:Erythropoiesis; D006400:Hematocrit; D007501:Iron / Q000378:metabolism; D007503:Iron Isotopes; D009751:Nutritional Requirements; D011894:Rana pipiens; D012621:Seasons; D013154:Spleen / Q000098:blood supply / Q000378:metabolism / Q000502:physiology*; D013217:Starvation
chemical_list: D007503:Iron Isotopes; D007501:Iron