Vitamin D deficiency and rheumatoid arthritis.
Doube
A
A
D001172:Arthritis, Rheumatoid / Q000453:epidemiology*; D015897:Comorbidity; D006801:Humans; D016014:Linear Models; D009520:New Zealand / Q000453:epidemiology; D014808:Vitamin D Deficiency / Q000453:epidemiology*