The acute and chronic toxic effects of vitamin A American Journal of Clinical Nutrition Vol 83 (2), 2006; pp 191-201
http://www.ajcn.org/cgi/content/abstract/83/2/191
The acute and chronic toxic effects of vitamin A American Journal of Clinical Nutrition Vol 83 (2), 2006; pp 191-201
http://www.ajcn.org/cgi/content/abstract/83/2/191