TY - JOUR T1 - Low-tech running shoes in high demand JF - Canadian Medical Association Journal JO - CMAJ SP - E20 LP - E20 DO - 10.1503/cmaj.109-3747 VL - 183 IS - 1 AU - Roger Collier Y1 - 2011/01/11 UR - http://www.cmaj.ca/content/183/1/E20.abstract ER -