TY - JOUR AU - Aiken, L H; Sermeus, W; van den Heede, K TI - Patient safety, satisfaction, and quality of hospital care: cross sectional surveys of nurses and patients in 12 countries in Europe and the United States JO - BMJ VL - 344 PY - 2012 DO - 10.1136/bmj.e1717 SP - e1717 N1 - et al. ER -