Sadia Asif, Asadullah Khan, Muhammad Faiq, Zia Ud Din, Sarmad Zahoor, and Muhammad Haroon. 2021. “Clinical and Serological Characteristics of Systemic Sclerosis: Experience of a Tertiary Care Center in Pakistan”. Archives of Rheumatology 36 (4):587-94. https://doi.org/10.46497/ArchRheumatol.2021.8701.