title: The effect of vasectomy on steroid metabolism by the seminiferous tubules and interstitial tissue of the rat testis: a comparison with the effects of ageing.
mesh_terms: D000375:Aging; D000818:Animals; D002247:Carbon Isotopes; D066298:In Vitro Techniques; D008297:Male; D009929:Organ Size; D011284:Pregnenolone / Q000378:metabolism*; D011374:Progesterone / Q000378:metabolism*; D051381:Rats; D013737:Testis / Q000378:metabolism*; D014316:Tritium; D014659:Vasectomy
chemical_list: D002247:Carbon Isotopes; D014316:Tritium; D011374:Progesterone; D011284:Pregnenolone