PT - JOURNAL ARTICLE AU - Bonnie O'Sullivan TI - Beyond Blackberry Thumb AID - 10.1503/cmaj.109-4395 DP - 2013 Jan 01 TA - Canadian Medical Association Journal PG - cmaj.109-4395 4099 - http://www.cmaj.ca/content/early/2013/02/04/cmaj.109-4395.short 4100 - http://www.cmaj.ca/content/early/2013/02/04/cmaj.109-4395.full