Core Viewpoint - The company, Tsinghua Tongfang, announced that its wholly-owned subsidiary, Shanghai Tsinghua Tongfang Diagnostic Technology Co., Ltd., has obtained five medical device registration certificates from the Shanghai Municipal Medical Products Administration [1] Group 1: Medical Device Registration - The five registered medical devices include: 1. Anti-double-stranded DNA antibody IgG test kit (flow cytometry method) 2. Anti-complement 1q antibody IgG test kit (flow cytometry method) 3. Anti-M2-3E antibody IgG test kit (flow cytometry method) 4. Anti-phospholipid syndrome IgA antibody test kit (flow cytometry method) 5. Anti-nucleosome antibody IgG test kit (flow cytometry method) [1]