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Haemoglobin level in relation to soil-transmitted helmiths infections among the Orang Asli schoolchildren in Satak, Pahang (n = 254). Values are mean ± SEM.*Significant difference (lower) compared to negative-to-light STH infection group (Independent t-test, P < 0.05). †Significant difference (higher) compared to before treatment (repeated measures ANOVA, P < 0.05).
