Department of Postgraduate in Adult Health;
Federal University of Minas Gerais;
Belo Horizonte;
Brazil;
Department of Radiotherapy;
Health Foundation Dilson de Quadros Godinho;
Montes Claros;
Brazil;
National Tumor/DNA Bank National Cancer Institute;
Rio de Janeiro;
Brazil;
Department of Postgraduate Course in Nursing and Biosciences;
Federal University of Rio de Janeiro State;
Rio de Janeiro;
Brazil;
Department of Postgraduation in Public Health;
Federal University of Minas Gerais;
Belo Horizonte;
Brazil;
Department of Medicine;
Federal University of Sao Joao del Rei;
Sao Joao del Rei;
Brazil;
Research Department of the Bonsucesso General Hospital;
Ethics Committee National Cancer Institute;
Rio de Janeiro;
Brazil;
Department of Abdominal-Pelvic Surgery;
National Cancer Institute;
Rio de Janeiro;
Brazil;
Department of Chemotherapy;
National Cancer Institute;
Rio de Janeiro;
Brazil;
Stomach Neoplasms; Family History; Hereditary; Aggregation; Hospital Records; Cross-Sectional Studies;