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Male
Support, Non-U.S. Gov't
human
Human
71
article
43
priority journal
42
Female
41
male
41
human cell
30
Adult
29
Middle Age
27
female
27
adult
25
Adolescent
21
Aged
18
controlled study
18
Child
17
Child, Preschool
17
Animal
16
Spermatozoa
16
adolescent
15
aged
14
male genital system
12
spermatozoon
12
Comparative Study
10
Erythrocytes
10
Rats
10
clinical article
10
major clinical study
10
normal human
10
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