COVID-19 related risk factors and their association with non-syndromic orofacial clefts in five Arab countries: a case-control study oleh Heba Jafar Sabbagh, Rana A. Alamoudi, Mohammad Zeinalddin, Taimoor Al Bulushi, Ola B. Al-Batayneh, Mamdouh A. AboulHassan, Mohamed Koraitim, Maryam Quritum, Buthaina Almuqbali, Sultan Musaad Alghamdi, Shaimaa Mohsen Refahee, Lateefa Alkharafi, Fatemah Fahad Taqi, Bader Albassam, Mariam Ayed, Alia Embaireeg, Raqiya Alnahdi, Mona Talal AlSharif, Fatma Dawood Abdulhameed, Aziza Johar Aljohar, Najla Sulaiman Alrejaye, Manal Ibrahim Almalik, P S Viswapurna, Tamara Al Halasa, Maha El Tantawi