1.
Saxena D, Jain D, Yadav M, Giri K, Yadav T, jain P. Late onset systemic sclerosis with seronegativity: a rare presentation of an uncommon disease. Reumatismo [Internet]. 24Oct.2019 [cited 7Dec.2019];71(3):166-70. Available from: https://reumatismo.org/index.php/reuma/article/view/1170