In-hospital mortality outcomes of favipiravir in patients with moderate to severe COVID-19 infection: An emulated target trial using real-world data from the largest field hospital in Thailand - Lalita Lumkul; Krittai Tanasombatkul; Phongsak Nitikaroon; Thotsaporn Morasert; Phichayut Phinyo (PLoS ONE, 2025)