%0 Journal Article %T Quality assurance of semen analysis in multicenter studies %A Giwercman, A. %A Spano, M. %A Lähdetie, J. %A Bonde, Jens Peter Ellekilde %A Asclepios, Asclepios %J Scandinavian Journal of Work, Environment & Health %D 1999 %8 VL 25 %N 1 %@ 0355-3140 %F Giwercman1999 %K field study %K fluorescence in situ hybridization %K quality control %K sperm chromatin structure assay %K sperm concentration %U https://www.sjweh.fi/show_abstract.php?abstract_id=393 %P 23-25