Ohnishi K et al.: Present characteristics of symptomatic Entamoeba histolytica infection in the big cities of Japan. Epidemiol Infect, 132, 57-60, 2004
Hung CC et al.: Invasive amebiasis as an emerging parasitic disease in patients with human immunodeficiency virus type 1 infection in Taiwan. Arch Intern Med, 165, 409-415, 2005