1. Trypanosoma species (Chagas' disease);Kirchhoff,1984
2. Recent developments in the field of Chagas' disease;Brener;Bull WHO,1982
3. Inquérito sorologico da prevaléncia da infec ça˜o chagásica no Brasil 1975/1980;Camargo;Rev Inst Med Trop Sao Paulo,1984
4. Chagas' disease in Latin American immigrants;Kirchhoff;JAMA,1985
5. Geographic distribution of undocumented immigrants: estimates of undocumented aliens counted in the 1980 census by state;Passel,1984