A study of renal disease in rheumatoid arthritis.
D001172:Arthritis, Rheumatoid / Q000150:complications*; D001706:Biopsy; D003404:Creatinine / Q000378:metabolism; D006801:Humans; D007674:Kidney Diseases / Q000150:complications*; D007677:Kidney Function Tests; D011507:Proteinuria
D003404:Creatinine