1 Working Group for the Evaluation of Political Intervention, Division of Epidemiology and Health Services Research, Epidemiology and Informatics (IMBEI), Institute of Medical Biostatistics, University Medical Center of the Johannes Gutenberg-University Mainz, Obere Zahlbacher Str. 69, 55131, Mainz, Germany. emilio.gianicolo@uni-mainz.de.
2 Istitute of Clinical Physiology, National Research Council, Lecce, Italy. emilio.gianicolo@uni-mainz.de.
3 Working Group for the Evaluation of Political Intervention, Division of Epidemiology and Health Services Research, Epidemiology and Informatics (IMBEI), Institute of Medical Biostatistics, University Medical Center of the Johannes Gutenberg-University Mainz, Obere Zahlbacher Str. 69, 55131, Mainz, Germany.