Affiliation: | 1. Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China;2. Department of Pediatric Orthopedic, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China;3. Correspondence to:;4. Haiqing Cai, Department of Pediatric Orthopedic, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China.;5. E‐mail:;6. Qihua Fu, Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China.;7. E‐mail: |