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Semen
Spermatozoon
Sperm Head
Sperm Count
Reproduction
Longitudinal Studies
Time Factors
Research Design
Sperm Motility
Occupational Exposure
Oligospermia
Male Infertility
Environmental Exposure
Ethylene Dibromide
Ethylene Glycols
United States
Fertility
Bicycling
Rabbits
Rats
Co-Publications
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