Predictive Relationships Between AGTR1 and ACE2 Polymorphisms for Hypertension and COVID-19 in Patients at a Tshwane Academic Hospital: A Preliminary Study. - Chalwe, Joseph Musonda; Moholisa, Retsilisitsoe Raymond; Modipane, Ndimo Rahab; Mbambara, Saidon Herbert; Matobole, Relebohile; Moetlhoa, Boitumelo; Sathekge, Mike Machaba; Kgatle, Mankgopo (COVID, 2026)