Reversible Acro-Osteolysis in Juvenile Mixed Connective Tissue Disease

From the Department of Rheumatology and Immunology, TianjinChildren's Hospital, Tianjin, China. The authors declare no conflict of interest. Correspondence: Chongwei Li, MM, Department of Rheumatology and Immunology, Tianjin Children's Hospital, No. 238, Longyan Rd, Beichen District, Tianjin 300134, China. E-mail: [email protected].