Colagar, A Hosseinzadeh Cigarette smoking and the risk of male infertility. [electronic resource] - Pakistan journal of biological sciences : PJBS Nov 2007 - 3870-4 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1028-8880 Standard No.: 10.3923/pjbs.2007.3870.3874 doi Subjects--Topical Terms: AdultDose-Response Relationship, DrugFertilityHumansInfertility, Male--etiologyMaleRiskSemen--drug effectsSmoking--adverse effectsSperm CountSperm Motility--drug effectsSpermatozoa--drug effects