title: Pigment polymorphism and blood serum variations in Rana pipiens.
mesh_terms: D000818:Animals; D001001:Anura; D001798:Blood Proteins; D004589:Electrophoresis, Disc; D009154:Mutation; D010858:Pigmentation; D011110:Polymorphism, Genetic; D012867:Skin
chemical_list: D001798:Blood Proteins