Ramy Abdallah, Marwa Alharbi, Ammar Katib, Khadijah Hawsawi, Lujain Madani, and Amjad Aldadi. 2022. “THE 2019 CORONAVIRUS DISEASE EVOLUTION (COVID-19) SYMPTOMS IN THE FIRST TWELVE MONTHS OF THE ILLNESS”. Journal of Population Therapeutics and Clinical Pharmacology 29 (04): 3842-49. https://doi.org/10.53555/jptcp.v29i04.6068.