Refugees from Indochina.
D001210:Asia, Southeastern; D006262:Health; D006304:Health Status; D006514:Hepatitis B Surface Antigens / Q000302:isolation & purification; D006801:Humans; D008288:Malaria / Q000453:epidemiology; D008403:Mass Screening; D012036:Refugees; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology
D006514:Hepatitis B Surface Antigens