... study, acquisition of data and helpedto draft the manuscript. BV: participated in the coordina-tion of the study, acquisition of data and helped to draft the manuscript.GK: conceived the study, ... gathering and processing of data (questionnaires), performed the statistical analy-ses and drafting of manuscript. RL: coordination of the study, gathering and processing of data (questionnaires),performed ... (questionnaires),performed the statistical analyses, drafting and revising of manuscript. JH: participated in the design of the study andhelped to draft the manuscript. MG: participated in the coordination of the...