A. J. Peters

Diets of Endurance Runners Competing in a 20-Day Road Race.

R. Dressendorfer, C. Keen, J. Rimar, 1986, The Physician and sportsmedicine.

Zinc-vitamin A interaction in pregnant and fetal rats: supplemental vitamin A does not prevent zinc-deficiency-induced teratogenesis.

C. Keen, L. Hurley, B. Lönnerdal, 1986, The Journal of nutrition.