title: Seasonal variation in amphibian phosphate metabolism and its relation to parathyroid structure and function.
mesh_terms: D000818:Animals; D001001:Anura; D002118:Calcium / Q000652:urine; D008297:Male; D010280:Parathyroid Glands / Q000033:anatomy & histology / Q000166:cytology / Q000502:physiology*; D010758:Phosphorus / Q000097:blood / Q000378:metabolism* / Q000652:urine; D011894:Rana pipiens / Q000378:metabolism*; D012621:Seasons; D014020:Tissue Extracts / Q000494:pharmacology
chemical_list: D014020:Tissue Extracts; D010758:Phosphorus; D002118:Calcium