title: [Electron microscopic studies on histogenesis of testicular tumor. 1. Electron microscopic observations of spermatocytic seminoma].
mesh_terms: D004407:Dysgerminoma / Q000648:ultrastructure*; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D013736:Testicular Neoplasms / Q000648:ultrastructure*