Fertility and early embryonic development have been investigated in rats and embryo-fetal development has been investigated in rats and rabbits.
研究大鼠的生殖能力和早期的胚胎发育以及大鼠和兔子的胚胎-胎仔发育。
Dr Shah could not find them earlier in development either, such as just after the fetal testes first started putting out testosterone in a 13-day-old embryo.
Shah博士在幼体发育早期没有发现任何睾丸酮受体；这和在胚胎测试中，发育十三天后的胚胎才开始出现睾丸酮激素现象相符合。
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