Ratio of PICU versus ward cardiopulmonary resuscitation events is increasing - Berg, R A; Sutton, R M; Holubkov, R; Eunice Kennedy Shriver National Institute of Child Health and Human Development Collaborative Pediatric Critical Care Research Network and for the American Heart Association's Get With the Guidelines-Resuscitation (formerly the National Registry of Cardiopulmonary Resuscitation) Investigators (Crit Care Med, 2013)