RT Journal Article SR Electronic T1 Lung cancer mortality according to birthplace JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 476 OP 483 VO 99 IS 10 A1 P. Coy A1 S. Grzybowski A1 J. F. Rowe YR 1968 UL http://www.cmaj.ca/content/99/10/476.abstract