PT - JOURNAL ARTICLE AU - Debra Martens TI - GPs challenge seven-day NHS proposal AID - 10.1503/cmaj.109-5195 DP - 2016 Jan 05 TA - Canadian Medical Association Journal PG - E9--E9 VI - 188 IP - 1 4099 - http://www.cmaj.ca/content/188/1/E9.short 4100 - http://www.cmaj.ca/content/188/1/E9.full SO - CMAJ2016 Jan 05; 188