Repurposing existing medications for coronavirus disease 2019: protocol for a rapid and living systematic review oleh Benjamin P. Geisler, Lara Zahabi, Adam Edward Lang, Naomi Eastwood, Elaine Tennant, Ljiljana Lukic, Elad Sharon, Hai-Hua Chuang, Chang-Berm Kang, Knakita Clayton-Johnson, Ahmed Aljaberi, Haining Yu, Chinh Bui, Tuan Le Mau, Wen-Cheng Li, Debbie Teodorescu, Ludwig Christian Hinske, Dennis L. Sun, Farrin A. Manian, Adam G. Dunn