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Studies were carried out on 855 pupils of classes 3, 5 and 7 (age range 5-16 years) attending 17 primary schools in the Kumba Health District, Cameroon, to determine the infection pattern of(More)
Biomedical studies accompanied by a questionnaire survey were carried out on 803 pupils of classes 3, 5 an 7 attending 17 primary schools in the Kumba Health District to determine the prevalence of(More)
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