title: Autoradiographic evidence of human male germ-cell differentiation in vitro.
mesh_terms: D001345:Autoradiography; D002454:Cell Differentiation; D005854:Germ Cells / Q000166:cytology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D014316:Tritium; D013936:Thymidine