[1] Univ Barcelona, Hosp Llobregat, Dept Ciencies Fisiol 2, E-08007 Barcelona, Spain
[2] Inst Invest Biomed Bellvitge IDIBELL, Barcelona, Spain
[3] IFADO, Leibniz Res Ctr Working Environm & Human Factors, Dortmund, Germany
[4] Univ Houston, Houston, TX USA
[5] Dutch Hlth Care Inspectorate, The Hague, Netherlands
[6] Univ Utrecht, Fac Vet Med, IRAS, Utrecht, Netherlands
[7] TNO, NL-3700 AJ Zeist, Netherlands