Wijchman, J G Variation in semen parameters derived from computer-aided semen analysis, within donors and between donors. [electronic resource] - Journal of andrology - 773-80 p. digital Publication Type: Journal Article ISSN: 0196-3635 Subjects--Topical Terms: HumansImage Processing, Computer-AssistedLongitudinal StudiesSemenSperm MotilityTissue Donors