Incidence, causes, severity and treatment of throat discomfort: a four-region online questionnaire survey.

BMC Ear Nose Throat Disord · 2012 · PMC3489867 · PMID 22883470

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may be significantno p-value reported

Also, environmental and physical causes of throat discomfort affected respondents throughout the year and the ongoing and cumulative impact of such suffering may be significant.

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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.