Author contributions
MT and NR devised the project and the main conceptual ideas and designed the survey. MT and NH designed the educational intervention. SH, NH, and BN revised the survey. MT, SH, AK, KG, ZS, and JH collected data. SZ performed the analytic calculations. MT assisted with the analysis and prepared the figures. MT, SZ, and ZS prepared the tables. MT and ZS were the major contributors in writing the manuscript. All authors contributed to the article and approved the submitted version.