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Global decline in semen quality: ignoring the developing world introduces selection bias
Multiple studies from around the world have suggested that semen quality is declining globally. However, all studies suffer from variable semen sampling criteria, selection bias with respect to the types of men volunteering to participate, and a bias with respect to a tendency to examine only sample...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Dove Medical Press
2012
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3325016/ https://www.ncbi.nlm.nih.gov/pubmed/22505829 http://dx.doi.org/10.2147/IJGM.S30673 |