PT - JOURNAL ARTICLE AU - Shannon S.D. Bredin AU - Darren E.R. Warburton TI - Physical Activity Line DP - 2013 Sep 01 TA - Canadian Family Physician PG - 967--968 VI - 59 IP - 9 4099 - http://www.cfp.ca/content/59/9/967.short 4100 - http://www.cfp.ca/content/59/9/967.full SO - Can Fam Physician2013 Sep 01; 59