RT Journal Article SR Electronic T1 Can we improve on Wilson and Jungner’s principles of screening for disease? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E414 OP E415 DO 10.1503/cmaj.180330 VO 190 IS 14 A1 Robert A. Smith YR 2018 UL http://www.cmaj.ca/content/190/14/E414.abstract AB