Zammit, Gary Zolpidem extended-release: therapy for sleep induction and sleep maintenance difficulties. [electronic resource] - Expert opinion on drug metabolism & toxicology Mar 2008 - 325-31 p. digital Publication Type: Journal Article; Review ISSN: 1742-5255 Standard No.: 10.1517/17425255.4.3.325 doi Subjects--Topical Terms: Delayed-Action PreparationsHumansPyridines--administration & dosageSleep Initiation and Maintenance Disorders--drug therapyZolpidem