**Author details**

Tanya Milachich\* and Desislava Dyulgerova-Nikolova SAGBAL "Dr. Shterev", Sofia, Bulgaria

\*Address all correspondence to: tanya\_ivf@yahoo.com

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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*The Sperm: Parameters and Evaluation DOI: http://dx.doi.org/10.5772/intechopen.90677*

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*The Sperm: Parameters and Evaluation DOI: http://dx.doi.org/10.5772/intechopen.90677*
