The effect of zinc and vitamin A supplementation on immune response in an older population.
Fortes C, Forastiere F, Agabiti N, Fano V, Pacifici R, Virgili F, Piras G, Guidi L, Bartoloni C, Tricerri A, Zuccaro P, Ebrahim S, Perucci CA.
Fortes C, et al. Among authors: agabiti n.
J Am Geriatr Soc. 1998 Jan;46(1):19-26. doi: 10.1111/j.1532-5415.1998.tb01008.x.
J Am Geriatr Soc. 1998.
PMID: 9434661
Clinical Trial.