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Fig. 1 | BMC Public Health

Fig. 1

From: The association between iodine intake and semen quality among fertile men in China

Fig. 1

Distribution of semen parameters in Chinese fertile men (orange bars) compared to the WHO reference population (blue bars). Data of Chinese fertile men is from our sample, data of the WHO reference population is from a study conducted by Cooper et al. (2010). The study population for the WHO reference group were fertile men (fathers with TTP ≤ 12 months) in eight countries on three continents. See “Study Population” and “Summary of Urine and Semen Parameters” for details

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