1. Interactions of nutrition and infection;Scrimshaw,1968
2. Vitamin A in animal and human nutrition;Underwood,1984
3. Retinoids and the immune system: immunostimulation by vitamin A;Dennert,1984
4. Cell-mediated immunity in nutritional deficiency;McMurray;Prog. Food Nutr. Sci.,1984
5. Lymphocyte depression induced in chickens on diets deficient in vitamin A and other components;Bang;Am. J. Pathol.,1972