Study of 607 systemic sclerosis (SSc) pts finds Pulm arterial HTN (PAH) in 77 (12.7%). While early immunosuppression didnt reduce odds of PAH (OR 0.74, p=0.495), early mycophenolate was protective(OR 0.12; p=0.048). Only HCQ use signif. improved survival (HR 0.04; p= 0.004). https://t.co/DbsJVZ16Zd