A prospective, community-based study on virologic assessment among elderly people with and without symptoms of acute respiratory infection

por Graat, Judith M, Schouten, Evert G, Heijnen, Marie-Louise A, Kok, Frans J, Pallast, Esther G.M, de Greeff, Sabine C, Dorigo-Zetsma, J.Wendelien
Publicado 2003