title: In vitro testosterone production from endogenous precursors by the seminiferous tubules and interstitium of the human testis.
mesh_terms: D000368:Aged; D002247:Carbon Isotopes; D002849:Chromatography, Gas; D006801:Humans; D066298:In Vitro Techniques; D008297:Male; D011284:Pregnenolone / Q000378:metabolism; D011374:Progesterone / Q000378:metabolism; D013737:Testis / Q000378:metabolism*; D013739:Testosterone / Q000096:biosynthesis*; D013997:Time Factors; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D014316:Tritium; D013739:Testosterone; D011374:Progesterone; D011284:Pregnenolone