Authors: Linda H Aiken; Douglas M Sloane; Luk Bruyneel; Koen Van den Heede; Peter Griffiths; Reinhard Busse; Marianna Diomidous; Juha Kinnunen; Maria Kózka; Emmanuel Lesaffre; Matthew D McHugh; M T Moreno-Casbas; Anne Marie Rafferty; Rene Schwendimann; P Anne Scott; Carol Tishelman; Theo van Achterberg; Walter Sermeus Journal: Lancet Date: 2014-02-26 Impact factor: 79.321