RT Journal Article SR Electronic T1 Computer-assisted medicine: economics of computing (part 2) JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 565 OP 572 VO 123 IS 6 A1 Covvey, H. D. A1 McAlister, N. H. A1 Torrance, G. W. YR 1980 UL http://www.cmaj.ca/content/123/6/565.abstract