International Journal of Preventive Medicine (Int J Prev Med)2008-78021120130408Prevention of Hepatitis A Virus Infection, Need to Vaccinate or Not?863865ENTehran Hepatitis Center, Tehran, IranResearch Center for Gastroenterology and Liver Disease, Baqiyatallah University of Medical Sciences, Tehran, Iran20130408-http://ijpm.mui.ac.ir/index.php/ijpm/article/view/1144http://ijpm.mui.ac.ir/index.php/ijpm/article/download/1144/1115