From past to present: Exploring COVID-19 in Qatar's hemodialysis population across Omicron dominant and pre-Omicron periods. - Hamad, Abdullah; Elgaali, Musab; Ghonimi, Tarek; Elshirbeny, Mostafa; Ali, Mohamed; Ibrahim, Rania; Othman, Muftah; Abuhelaiqa, Essa; Ezzat, Hany; Boubaker, Karima; Alkadi, Mohamad; Al-Malki, Hassan (PLoS ONE, 2023)