Fluoridation of water supplies and cancer mortality. I: A search for an effect in the UK on risk of death from cancer.

Abstract
Examination of the trend in mortality for cancer in the 7 cities in England and Wales with populations > 400,000, and in England and Wales as a whole, between 1959-1963 and 1974-1978 provides no reason to suppose that any unique factor, such as fluoridation of the water supplies, has affected the cancer death rate in Birmingham since 1964.