Evaluation of mouth self-examination in the control of oral cancer.

Br J Cancer · 1995 · PMC2033573 · PMID 7841060

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an increasing trendno p-value reported

An increasing trend in the incidence of and mortality from oral cancer has been observed recently in some western populations (Davis and Severson. 1987; Coleman et al.. 1993).

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.