A. . Sinha, raja Bhattacharya, R. Baisya, U. . Bhattacharjee, P. Biswas, and A. Bhattacharya, “A STUDY TO COMPARE CLINICAL FEATURES AND LABORATORY FINDINGS OF SEROPOSITIVE AND SERONEGATIVE CASES OF RHEUMATOID ARTHRITIS”, Natl J Med Res, vol. 7, no. 03, pp. 127–130, Sep. 2017.