@article {689,
	title = {Calcium channel blocker use and gastrointestinal tract bleeding among older adults.},
	journal = {Age Ageing},
	volume = {31},
	year = {2002},
	month = {2002 May},
	pages = {217-8},
	keywords = {Aged, Antihypertensive Agents, Calcium Channel Blockers, Gastrointestinal Hemorrhage, Geriatric Assessment, Health Services for the Aged, Humans, Hypertension, Prospective Studies, Risk Factors},
	issn = {0002-0729},
	doi = {10.1093/ageing/31.3.217},
	author = {Kaplan, Robert C and Heckbert, Susan R and Koepsell, Thomas D and Rosendaal, Frits R and Furberg, Curt D and Cooper, Lawton S and Psaty, Bruce M}
}
