RT Journal Article SR Electronic T1 Seroconversion from Anti-Th/To to Anticentromere Antibodies in a Patient with Systemic Sclerosis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1938 OP 1939 DO 10.3899/jrheum.170575 VO 44 IS 12 A1 MARTIAL KOENIG A1 JEAN-LUC SENÉCAL A1 MICHAEL MAHLER YR 2017 UL http://www.jrheum.org/content/44/12/1938.abstract AB