TY - JOUR T1 - Correction JF - BMJ Open JO - BMJ Open DO - 10.1136/bmjopen-2012-002028corr1 VL - 3 IS - 10 SP - e002028corr1 A2 - , Y1 - 2013/10/01 UR - http://bmjopen.bmj.com/content/3/10/e002028corr1.abstract N2 - Heesen M, Klöhr S, Rossaint R, et al. Concerning … ER -