TY - JOUR T1 - Corrections JF - Quality and Safety in Health Care JO - Qual Saf Health Care SP - 80 LP - 80 DO - 10.1136/qshc.2007.024323corr1 VL - 18 IS - 1 A2 - , Y1 - 2009/02/01 UR - http://qualitysafety.bmj.com/content/18/1/80.1.abstract N2 - McKay J, Bowie P, Murray L, Lough M. Levels of agreement on the grading, analysis and … ER -