The biological activity of retinoic acid in the domestic fowl and the effects of vitamin A deficiency on the chick embryo

Abstract
The biological activity of retinoic acid in the domestic fowl and the effects of vitamin A deficiency on the chick embryo - Volume 23 Issue 3 - J. N. Thampson, J. McC. Howell, G. A. J. Pitt, Catherine I. McLaughlin