title: Guinea pig mammary gland milk content by isotope dilution methods using  141 Ce and  14 C-polyethylene glycol-4000.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002564:Cerium Isotopes; D005260:Female; D006018:Glycols; D006168:Guinea Pigs / Q000502:physiology*; D007774:Lactation; D008321:Mammary Glands, Animal / Q000032:analysis* / Q000187:drug effects; D008722:Methods; D008892:Milk / Q000032:analysis*; D010121:Oxytocin / Q000494:pharmacology; D011095:Polyethylenes; D011247:Pregnancy; D011865:Radioisotope Dilution Technique
chemical_list: D002247:Carbon Isotopes; D002564:Cerium Isotopes; D006018:Glycols; D011095:Polyethylenes; D010121:Oxytocin