Affiliation: | aDivision of Occupational and Environmental Medicine, Lund University, Lund University Hospital, SE-221 85 Lund, Sweden;bDepartment of Molecular Reproductive Medicine, Lund University, Malmö University Hospital, SE-202 05 Malmö, Sweden;cDepartment of Chemistry, Umeå University, SE-901 87 Umeå, Sweden |