Shankar, P SScott, J HAnderson, C L1977-01-012009-05-271977-01-012009-05-271977-01-01Shankar PS, Scott JH, Anderson CL. Pulmonary disease in ankylosing spondylitis positive for rheumatoid factor and HLA-B 27. The Indian Journal of Chest Diseases & Allied Sciences. 1977 Jan; 19(1): 27-31http://imsear.searo.who.int/handle/123456789/29307engAgedHLA AntigensHumansMaleMiddle AgedPulmonary Fibrosis --etiologyRheumatoid FactorSpondylitis, Ankylosing --complicationsPulmonary disease in ankylosing spondylitis positive for rheumatoid factor and HLA-B 27.Case Reports