1. Hospital do Câncer (UOPECCAN) and Hospital Universitário and Hospital São Lucas, Cascavel, PR, Brazil
2. Hospital São Lucas, Cascavel, PR, Brazil
3. Curso de Medicina, Faculdade Assis Gurgacz, Cascavel, PR, Brazil
4. Hospital Universitário, Cascavel, PR, Brazil
5. Hospital Bom Jesus, Toledo, PR, Brazil
6. Hospital Nossa Senhora Salete, Cascavel, PR, Brazil
7. Hospital Costa Cavalcanti, Foz do Iguaçu, PR, Brazil