David B Waisel1. 1. Department of Anesthesiology, Perioperative and Pain Medicine/Bader 3, Children's Hospital Boston, 300 Longwood Drive, Boston, MA 02115, USA. david.waisel@childrens.harvard.edu
Authors: Oliver Ommen; Elke Driller; Thorsten Köhler; Christoph Kowalski; Nicole Ernstmann; Melanie Neumann; Petra Steffen; Holger Pfaff Journal: BMC Health Serv Res Date: 2009-05-16 Impact factor: 2.655