TY - JOUR T1 - GPs challenge seven-day NHS proposal JF - Canadian Medical Association Journal JO - CMAJ SP - E9 LP - E9 DO - 10.1503/cmaj.109-5195 VL - 188 IS - 1 AU - Debra Martens Y1 - 2016/01/05 UR - http://www.cmaj.ca/content/188/1/E9.abstract ER -