[1] Henan Univ Sci & Technol, Dept Rheumatism Immun Branch, Affiliated Hosp 1, Luoyang, Peoples R China
[2] Henan Univ Sci & Technol, Coll Clin Med, Jinghua Rd 24, Luoyang 471003, Peoples R China
[3] Henan Univ Sci & Technol, Dept Urol, Affiliated Hosp 1, Jinghua Rd 24, Luoyang 471003, Peoples R China
[4] Henan Univ Tradit Chinese Med, Affiliated Hosp 2, Dept Anorectal Surg Tradit Chinese Med, Zhengzhou, Peoples R China