P. Breña

Human Coronavirus-Associated Influenza-Like Illness in the Community Setting in Peru.

M. Widdowson, T. Uyeki, J. Montgomery, 2015, The American journal of tropical medicine and hygiene.

Enfermedades de mascotas en humanos. Revisin actualizada Pet Diseases in humans. Updated review

P. Breña, C. Vargas, L. Soto, 2004 .

Enteroviruses in Spain: virological and epidemiological studies over 10 years (1988–97)

A. Tenório, I. Casas, J. Echevarría, 2000, Epidemiology and Infection.