title: Letter to: "Vitamin D levels and bone mass in rheumatoid arthritis".
authors.affiliation: Department of Physical Medicine and Rehabilitation, Abant Izzet Baysal University School of Medicine, Karacasu, Bolu, Turkey.
authors.forename: Bunyamin
authors.initials: B
authors.lastname: Koc
authors.forename: Hakan
authors.initials: H
authors.lastname: Sarman
authors.forename: Ismail
authors.initials: I
authors.lastname: Boyraz
mesh_terms: D001172:Arthritis, Rheumatoid / Q000503:physiopathology*; D005260:Female; D005272:Femur Neck / Q000000981:diagnostic imaging*; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D011859:Radiography; D014807:Vitamin D / Q000031:analogs & derivatives*; D014808:Vitamin D Deficiency / Q000097:blood*
chemical_list: D014807:Vitamin D