COVID-19(10) evaluated(8) sensitivity(8) Accuracy(8) deep learning(8) X-ray(6) input(6) feature(5) Image(5) Chest(5) Diagnosis(5) classification(5) Chest X-ray images(5) Region(5) Pneumonia(5) AUC(5) Lungs(5) approach(5) chest X-ray(5) artificial intelligence(5) lung(5) dataset(5) specificity(5) Coronavirus disease 2019(4) network architecture(3) biases(3) Inclusion(3) decrease(3) RT-PCR(3) Behavior(3)