海量图书期刊资源，随时随地畅享阅读乐趣
Mesodermal induction in early amphibian embryos by activin A (erythroid differentiation factor)Makoto Asashima; Hiroshi Nakano; Kazunori Shimada; Kei Kinoshita; Koichi Ishii; Hiroshiro Shibai; Naoto Ueno · 1990