Authors’ contributions
JFS and JB conceived of the study. JFS, XK, SL, AP, HM, and JB designed the study. AP and HM managed staff members as the director and vice director of the hospital. JFS and JB wrote the grant proposal. XK wrote the proposal for the ethics committee. JFS preregistered the study. XK prepared the logistics of the study and supervised EKK. JFS, AF, and EKK tested participants. JFS managed data entry and analysed the data. JFS wrote and revised the manuscript with help from XK, GA, SL, UE, and JB. UE contributed to the supervision of JFS. JB was the main supervisor and senior author of the study. All authors read and approved the final manuscript.