RT Journal Article SR Electronic T1 Calculating the cost of asthma in Canada JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 863 OP 863 VO 155 IS 7 A1 Liss, G. M. A1 Yeung, K. S. A1 Elinson, L. A1 Tarlo, S. YR 1996 UL http://www.cmaj.ca/content/155/7/863.abstract