Coming Out of Nowhere: The Paradox of the Birth of Omicron. - Mortazavi, Seyed Alireza; Jooyan, Najmeh; Baigy Zarandi, Batool Faegheh Baha'addini; Jooyan, Neda; Faraz, Mehdi; Mortazavi, Seyed Mohammad Javad (Journal of Biomedical Physics & Engineering, 2022)