Figure 4: Statistical analysis of the diameters of LSVs in rats with VC in groups III and IV. ( a ) The diameters of LSVs at baseline and 30 days postoperatively. ( b ) The increments of LSVs diameters. The increments were calculated as postsurgical diameters minus their baseline ones. **: P < 0.01; ns: P > 0.05; group III: n = 7; group IV: n = 10; LSV: left spermatic vein; VC: varicocele.