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This study was designed to determine the accumulation and toxicity of para-aminobenzoic acid (PABA) in rats. PABA was provided at 0, 0.1, 0.5 and 1% in the drinking water for 4 weeks, during which the rats were fed a standard laboratory diet. The results showed that PABA affected neither the body weight gain nor the organ (liver, kidney, and spleen) weights during the 4-week period. The contents...
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