Chart 1From: In vitro transplantation of spermatogonial stem cells isolated from human frozen–thawed testis tissue can induce spermatogenesis under 3-dimensional tissue culture conditionsResults of histomorphometric studies in host testes. Number of different types of cells of seminiferous tubule epithelium (a) and percentage of seminiferous tubules containing epithelium (b) after 8 weeks of tissue culture in different groups. *Significant different with control group (P < 0.05)Back to article page