Z Sayah-Moussaoui

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An enquiry was made to determine the prevalence of asthma in adolescents and was achieved using a questionnaire which was filled in by the pupils in secondary schools in Rabat. The sample was determined by a systematic poll of 1,616 pupils of whom 1,464 (90.6%) replied. 88 pupils (6.0%) replied in the affirmative to the question "Have you ever had whistling(More)
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