title: [The study of parathyroid hormone and osteocalcin in patients with rheumatoid arthritis].
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000097:blood* / Q000175:diagnosis / Q000473:pathology; D001842:Bone and Bones / Q000473:pathology; D002135:Calcium-Binding Proteins / Q000097:blood*; D005260:Female; D006801:Humans; D008875:Middle Aged; D015675:Osteocalcin; D010281:Parathyroid Hormone / Q000097:blood*
chemical_list: D002135:Calcium-Binding Proteins; D010281:Parathyroid Hormone; D015675:Osteocalcin