Ethical approval
DEL, DER
The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Clinical Research Ethics Committee of the Cork Teaching Hospitals (Ireland; reference number ECM 4 (bb) 10/11/2020), Griffith University Research Human Research Ethics Committee (Australia; reference number 2020/842), Ethical Review Board of The Finnish Institute for Health and Welfare (Finland; reference number THL/5316/6.02.01/2020); Egészségügyi Tudományos Tanács, Tudományos és Kutatásetikai Bizottság (Hungary; reference number iV/10156–3/2020/EKU); Professional Ethics Commission of Hospital and University Clinical Service of Kosovo (Kosovo; reference number 2550); Comité de Ética de la Investigación con medicamentos del Parc de Salut MAR (Spain; reference number 2019/8872/l); The Medical Research Ethics Committee Utrecht (The Netherlands; reference number SL/avd/21/500074); Ethikkommission des Fachbereichs Medizin der Goethe-Universität Frankfurt am Main (Germany; reference number 20–1025); and National Ethics Committee, Albania (Albania; reference number 98.8).