Trends in tumor location in gastric carcinoma over a 28-year period - Jacob, Carlos Eduardo; Gama-Rodrigues, Joaquim José; Bresciani, Claudio José Caldas; Zilberstein, Bruno; Proscurshim, Igor; Iriya, Kiyoshi; Alves, Venâncio Avancini Ferreira; Cecconello, Ivan (Hepato-Gastroenterology, 2007)