Holstein, A F [Cytology of the prenatal development of human gonads. 3. Development of leydig cells in the testis of embryos and fetuses]. [electronic resource] - Zeitschrift fur Anatomie und Entwicklungsgeschichte 1971 - 43-66 p. digital Publication Type: Journal Article ISSN: 0044-2232 Subjects--Topical Terms: Cell DifferentiationChorionic Gonadotropin--pharmacologyEmbryo, Mammalian--anatomy & histologyEndoplasmic ReticulumFetus--anatomy & histologyGolgi ApparatusHumansLeydig Cells--cytologyMaleMicroscopy, ElectronMitochondriaTestis--embryology