mean seminiferous tubular diameter was reduced by 15 and 29 % with the two highest dosages of dbcp , respectively ( p less than 0.01 ) , and the percentage of seminiferous tubules containing elongating and round spermatids , as the most advanced cell type present , was decreased ( p less than 0.01 ) .
C0036630
seminiferous tubules
C0037857
spermatids