PT - JOURNAL ARTICLE AU - Amanda Grant-Orser AU - Paul Davies AU - Sukhbir Sony Singh TI - The lost sponge: patient safety in the operating room AID - 10.1503/cmaj.110900 DP - 2012 Aug 07 TA - Canadian Medical Association Journal PG - 1275--1278 VI - 184 IP - 11 4099 - http://www.cmaj.ca/content/184/11/1275.short 4100 - http://www.cmaj.ca/content/184/11/1275.full SO - CMAJ2012 Aug 07; 184