PT - JOURNAL ARTICLE AU - Kelsall, Diane L. TI - Don’t ask, don’t tell: Canadian policies on radon AID - 10.1503/cmaj.150503 DP - 2015 Jun 16 TA - Canadian Medical Association Journal PG - 635--635 VI - 187 IP - 9 4099 - http://www.cmaj.ca/content/187/9/635.short 4100 - http://www.cmaj.ca/content/187/9/635.full SO - CMAJ2015 Jun 16; 187