Esophageal cancer in Canada.
Frei
J V
JV
D000230:Adenocarcinoma / Q000453:epidemiology*; D002170:Canada; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology*; D004938:Esophageal Neoplasms / Q000453:epidemiology*; D006801:Humans