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EyeLife is one of Lifelines' additional assessments.
This assessment is a collaboration between Lifelines and the UMCG Department of Opthalmology department of gyneacology.
The goal of the assessment is to quantify male fertility in the general population using a questionnaire, semen analyses, and plasma testosterone measurements.
Vesper started in Q3 of 2019 and will run until 400 male participants have finalized the protocol.
Participants between 18-55 years old are invited:
Inclusion criteria were:
Exclusion criteria were: