Ott JJ, Irving G, Wiersma ST (Dezembro de 2012). «Long-term protective effects of hepatitis A vaccines. A systematic review». Vaccine. 31 (1): 3–11. PMID22609026. doi:10.1016/j.vaccine.2012.04.104
Ott JJ, Irving G, Wiersma ST (Dezembro de 2012). «Long-term protective effects of hepatitis A vaccines. A systematic review». Vaccine. 31 (1): 3–11. PMID22609026. doi:10.1016/j.vaccine.2012.04.104