Authors: Eva Boonen; Hilke Vervenne; Philippe Meersseman; Ruth Andrew; Leen Mortier; Peter E Declercq; Yoo-Mee Vanwijngaerden; Isabel Spriet; Pieter J Wouters; Sarah Vander Perre; Lies Langouche; Ilse Vanhorebeek; Brian R Walker; Greet Van den Berghe Journal: N Engl J Med Date: 2013-03-19 Impact factor: 91.245