Departm ent of Urology;
Tianjin Medical University General Hospital;
Tianjin 300052;
China;
Department of Urology;
Tianjin Institute of Urology;
The Second Hospital of Tianjin Medical University;
Tianjin 3CX3211;
China;
biomarker; cleaved caspase-3; m iR-210-3p; semen quality; varicocele;