Authors: R Orriols; R Costa; M Albanell; C Alberti; J Castejon; E Monso; R Panades; N Rubira; J-P Zock Journal: Occup Environ Med Date: 2006-04 Impact factor: 4.402
Authors: Dick Spreeuwers; Angela G E M de Boer; Jos H A M Verbeek; Frank J H van Dijk Journal: BMC Health Serv Res Date: 2009-10-23 Impact factor: 2.655