Papadaki, A.; Linardakis, M.; Plada, M.; Larsen, T.; van Baak, M.; Lindroos, A. K.; Pfeiffer, A.; Martinez, J. A.; Handjieva-Darlenska, T.; Kunešová, M.; Holst, C.; Saris, W.; Astrup, A.; Kafatos, A.; on behalf of DiOGenes (project ’Diet, Obesity and Genes’, supported by the European Community). A Multicentre Weight Loss Study Using a Low-Calorie Diet over 8 Weeks: Regional Differences in Efficacy across Eight European Cities. Swiss Med Wkly 2013, 143, w13721.