Corrigendum: Factors influencing participation in COVID-19 clinical trials: a multinational study - Abdelhafiz, Ahmed Samir; Abd ElHafeez, Samar; Khalil, Mohammad Adnan; Shahrouri, Manal; Alosaimi, Bandar; Salem, Raneem O.; Alorabi, Mohamed; Abdelgawad, Fatma; Ahram, Mamoun (Frontiers in Medicine, 2023)