Characteristics, outcomes, and risk factors for in-hospital mortality of COVID-19 patients: A retrospective study in Thailand oleh Thummaporn Naorungroj, Tanuwong Viarasilpa, Surat Tongyoo, Aeckapholpholladet Detkaew, Thanchanok Pinpak, Rawish Wimolwattanaphan, Ranistha Ratanarat, Panuwat Promsin, Preecha Thamrongpiroj, Akekarin Phumpichet, Chairat Permpikul