Marotta, R. V., R. Baccalini, A. Mauri, M. Facca, G. Palanza, M. Martucci, R. Seminati, and G. M. d’Eril. “Diagnosing HIV ‘window phase’ in Routine Laboratory: A Teaching Case”. Microbiologia Medica, vol. 26, no. 4, Dec. 2011, doi:10.4081/mm.2011.2346.