Laitupa, S.K. and Perdana Aditya Rahman 2022. Avascular Osteonecrosis in Systemic Sclerosis Patient: Risk Factors and Role of Vasculopathy?. Indonesian Journal of Rheumatology. 13, 2 (Mar. 2022), 532-545. DOI:https://doi.org/10.37275/ijr.v13i2.162.