Wilzeck, V.C., Hufschmid, J., Bischof, L., Hansi, C., Nägele, M.P., Beer, J.H. and Hufschmid, U. 2020. A significant increase in exercise test performance with virtual group motivation: a randomised open-label controlled trial. Swiss Medical Weekly. 150, 2930 (Jul. 2020), w20287. DOI:https://doi.org/10.4414/smw.2020.20287.