Effects of epidermal growth factor (EGF), transforming growth factor-alpha (TGFalpha), and 2,3,7,8-tetrachlorodibenzo-p-dioxin on fusion of embryonic palates in serum-free organ culture using wild-type, EGF knockout, and TGFalpha knockout mouse strains - Abbott, B D; Buckalew, A R; Leffler, K E (Birth Defects Res A Clin Mol Teratol, 2005)