Semen quality and age-specific changes: a study between two decades on 3,729 male partners of couples with normal sperm count and attending an andrology laboratory for infertility-related problems in an Indian city.
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...Similarly, in a large prospective study comprising of 3,729 male partners evaluated for semen quality and age-specific changes, a significant decrease was reported in sperm volume and motility with increasing paternal age [42]....
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Cites background from "Semen quality and age-specific chan..."
...Finally, by not selecting a sample of men with concentration greater than a minimum threshold (Zorn et al., 1999; Sripada et al., 2007; Mukhopadhyay et al., 2010), we were not subject to bias created by truncating the concentration probability density....
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...Finally, by not selecting a sample of men with concentration greater than a minimum threshold (Zorn et al., 1999; Sripada et al., 2007; Mukhopadhyay et al., 2010), we were not subject to bias created by truncating the concentration probability density....
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...…1999; Seo et al., 2000; Lackner et al., 2005; Sripada et al., 2007; Fisch, 2008; Feki et al., 2009), some observe a decrease (Auger et al., 1995; Zorn et al., 1999; Almagor et al., 2003; Mukhopadhyay et al., 2010) and a few observe an increase (Andolz et al., 1999; Chen et al., 2003) in motility....
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..., 2009), some observe a decrease (Auger et al., 1995; Zorn et al., 1999; Almagor et al., 2003; Mukhopadhyay et al., 2010) and a few observe an increase (Andolz et al....
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"Semen quality and age-specific chan..." refers background in this paper
...subjects, [2] inclusion of pathological disorders, [3] low number of study population, [4] improper statistical modeling, [5] regional and temporal differences, and [6] intertechnician variability in scoring....
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"Semen quality and age-specific chan..." refers background in this paper
...subjects, [2] inclusion of pathological disorders, [3] low number of study population, [4] improper statistical modeling, [5] regional and temporal differences, and [6] intertechnician variability in scoring....
[...]