[vitamin a deficiency in a rural population of mauritania and absence of a correlation with urinary schistosomiasis].this work is part of a wider study on urinary schistosomiasis in a west african rural population and was devoted to the assessment of vitamin a deficiency and the analysis of relations between serum retinol levels and schistosoma haematobium infection. the study took place in two villages located in a southeastern region of mauritania (hodh-el-gharbi), a semi-arid zone struck by the sahel drought. during the dry season 1985, 206 children between 1 and 15 years of age were randomly selected (sing ...19882907265
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