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Humans
Male
16
Retrospective Studies
controlled study
human
16
male
adult
14
article
14
Adult
12
Female
12
Middle Aged
12
female
12
major clinical study
12
priority journal
12
Aged
8
aged
8
retrospective study
8
Chi-Square Distribution
6
Young Adult
6
prediction
6
Adolescent
4
Age Factors
4
Aged, 80 and over
4
Follow-Up Studies
4
Infertility, Male
4
Proportional Hazards Models
4
Risk Factors
4
Spermatozoa
4
age
4
chronic disease
4
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4Publicado 2014
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9JOUR
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16JOUR