Abdel Kader, M M Effect of some heterocyclic compounds on human semen composition and biology. [electronic resource] - Acta biologica et medica Germanica 1978 - 1701-5 p. digital Publication Type: Journal Article ISSN: 0001-5318 Subjects--Topical Terms: Caffeine--pharmacologyFructose--metabolismHumansLactates--metabolismMaleNiacinamide--pharmacologyOxygen Consumption--drug effectsPyruvates--metabolismRiboflavin--pharmacologySemen--physiologySperm MotilitySpermatozoa--drug effects