Fig. 2From: In vitro transplantation of spermatogonial stem cells isolated from human frozen–thawed testis tissue can induce spermatogenesis under 3-dimensional tissue culture conditionsTransplantation of SSCs to host testes and following in organ culture results. IVT of SSs to host testis and organ culture (a–c). H&E staining of tissue sections IVT group (d, e) and control group (g, h). Dynamic dissection of testis fragments after 8 weeks in IVT group (f) and control group (i). Black arrow: SCs, green arrow: spermatocyte and yellow arrow: long spermatid or sperm like cellsBack to article page