Chun Lai Too, Abqariyah Yahya, Shahnaz Murad, Jasbir S Dhaliwal, Nor A Muhamad, Nor A Abdullah, Amal N Mustafa, Lars Klareskog, Lars Alfredson, Leonid Padyukov and Camilla Bengtsson (2012). Smoking interacts with HLA-DRB1 shared epitope in the development of ACPA-positive rheumatoid arthritis: results from the Malaysian Epidemiological Investigation of Rheumatoid Arthritis (MyEiRA). Arthritis Research and Theraphy 14(2):R89