How Accurately are Maximal Metabolic Equivalents Estimated Based on the Treadmill Workload in Healthy People and Asymptomatic Subjects with Cardiovascular Risk Factors? - Maeder, M. T.; Muenzer, T.; Rickli, H.; Brunner-La Rocca, H. P.; Myers, J.; Ammann, P. (International Journal of Sports Medicine, 2008)