Differences in cancer mortality in Belgium, with particular reference to gall-bladder cancer.
D001530:Belgium; D005260:Female; D005706:Gallbladder Neoplasms / Q000453:epidemiology / Q000401:mortality; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000453:epidemiology*; D013223:Statistics as Topic