Provider costs of professional COVID-19 rapid antigen testing in low-income settings. - Mangenah C; Ngwira LG; Ekwunife O; Sande L; Bonnet G; Chiwawa P; Mashoko L; Nkhoma D; Mwase N; Isere E; Kabonga I; Watadzaushe C; et al. (PLOS global public health, 2025)