RT Journal Article SR Electronic T1 Smoking — Does It Affect Rheumatoid Arthritis Activity? Does It Matter? JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1072 OP 1074 DO 10.3899/jrheum.150491 VO 42 IS 7 A1 BURKHARD F. LEEB A1 HARSONO T.H. MAI YR 2015 UL http://www.jrheum.org/content/42/7/1072.abstract AB