A practical artificial intelligence system to diagnose COVID-19 using computed tomography: A multinational external validation study. - Ali Abbasian Ardakani; Robert M. Kwee; Mohammad Mirza-Aghazadeh-Attari; Horacio Matías Castro; Taha Yusuf Kuzan; Kübra Murzoglu Altintoprak; Giulia Besutti; Filippo Monelli; Fariborz Faeghi; U. Rajendra Acharya; Afshin Mohammadi (Pattern Recognit. Lett., 2021)