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Tirabassi, G., Cutini, M., Muscogiuri, G. et al. Association between vitamin D and sperm parameters: Clinical evidence. Endocrine 58, 194–198 (2017). https://doi.org/10.1007/s12020-016-1198-9
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DOI: https://doi.org/10.1007/s12020-016-1198-9