Aetiology of cancer of the oesophagus: geographical studies in the footsteps of Marco Polo and beyond.
Sagar
P M
PM
University Department of Surgery, General Infirmary, Leeds.
D002681:China; D004938:Esophageal Neoplasms / Q000209:etiology*; D006801:Humans; D007492:Iran; D013019:South Africa