ABSTRACT
18.f.1. Asmussen, I., Ultrastructure of human umbilical veins: observations on veins from newborn children of smoking and nonsmoking mothers, Acta Obstet. Gynecol. Scand., 57, 253—255, 1978. Umbilical cord veins from newborns (N = 4) of smoking mothers had lower collagen content, edema in the subintimal space, and deficiencies in intimal elastic membranes.
