TY - JOUR T1 - Corrections JF - Quality and Safety in Health Care JO - Qual Saf Health Care SP - 80 LP - 80 DO - 10.1136/qshc.2008.012047corr1 VL - 18 IS - 1 A2 - , Y1 - 2009/02/01 UR - http://qualitysafety.bmj.com/content/18/1/80.2.abstract N2 - Mohammed MA, Worthington P, Woodall WH. Plotting basic control charts: tutorial … ER -