[1] Weifang Med Univ, Dept Endocrinol & Metab, Affiliated Hosp, Weifang, Peoples R China
[2] Weifang Med Univ, Clin Res Ctr, Affiliated Hosp, Weifang, Peoples R China
[3] Qingdao Univ, Dept Nephrol, Affiliated Hosp, Qingdao, Peoples R China
[4] Univ Calif San Francisco, Dept Urol, Knuppe Mol Urol Lab, San Francisco, CA 94143 USA