本帖最后由 ppsweek 于 2014-6-21 16:57 编辑 1 n' q$ Z. a6 V! A% O8 h2 q) F / t5 m/ V; |# P“Studies on spermatogenesis in rats. II. Evidence that carnitine acetyltransferase is a marker enzyme for the investigation of germ cell differentiation.”# W" Q: K, A7 b" s. j; G6 Z* A& Z