RT Journal Article SR Electronic T1 Drug-drug interactions: How scared should we be? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1266 OP 1267 VO 161 IS 10 A1 Lori E. Shapiro A1 Neil H. Shear YR 1999 UL http://www.cmaj.ca/content/161/10/1266.abstract