RT Journal Article SR Electronic T1 Presence of Antitopoisomerase I Antibody Alone May Not Be Sufficient for the Diagnosis of Systemic Sclerosis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 440 OP 442 DO 10.3899/jrheum.180503 VO 46 IS 4 A1 ANNE E. TEBO A1 ROBERT L. SCHMIDT A1 TRACY M. FRECH YR 2019 UL http://www.jrheum.org/content/46/4/440.abstract AB