RT Journal Article SR Electronic T1 Right Ventricular Function in Systemic Sclerosis-associated Pulmonary Arterial Hypertension JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 90 OP 90 DO 10.3899/jrheum.120966 VO 40 IS 1 A1 MARTIN KOESTENBERGER A1 WILLIAM RAVEKES YR 2013 UL http://www.jrheum.org/content/40/1/90.2.abstract AB