Citation:Horn SD, Gassaway J. Practice-based evidence study design for comparative effectiveness research. Med Care 2007 Oct;45(10 Supl 2):S50-7.Principal Investigator: Horn, SusanProject Name: Nursing Home Information Technology (IT): Optimal Medication and Care DeliveryFunding Mechanism: Transforming Healthcare Quality Through Information Technology (THQIT) - Implementation GrantsDocument Type: Journal PublicationResearch Method: DescriptiveTechnology: Clinical Decision Support System, Electronic Health Record/Electronic Medical Record, Medication Management SystemPopulation: Adults, Individuals with Chronic Care Needs, Elderly, Individuals with End-of-Life Care Needs, Medicare