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. 2012 Jun;35(3):317–329. doi: 10.1111/j.1365-2605.2011.01234.x

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© 2011 The Authors. International Journal of Andrology © 2011 European Academy of Andrology

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Mean serum concentrations of (A) Testosterone, (B) LH, (C) FSH and (D) INHA in control and sewage sludge-exposed rams. Blue circles = sludge-exposed animals with a low testis weight (as in Fig. 2). Bars represent mean ± SEM.