title: Osteoporosis and vitamin D metabolites.
authors: H
authors: H
authors: Rico
mesh_terms: D000293:Adolescent; D000367:Age Factors; D000368:Aged; D002116:Calcitonin / Q000097:blood; D006801:Humans; D010024:Osteoporosis / Q000378:metabolism*; D010281:Parathyroid Hormone / Q000097:blood; D014807:Vitamin D / Q000378:metabolism*
chemical_list: D010281:Parathyroid Hormone; D014807:Vitamin D; D002116:Calcitonin