Table 4.

The detailed information on the utilized datasets and their sources.

Dataset	Normal	COVID-19	Pneumonia	Total
Source datasets
covid-chestxray-dataseta	–	76	17	93
COVID-19 Radiography Databaseb	1341	219	1345	2905
Chest X-Ray Images (Pneumonia)c	1583	–	4273	5856
Used datasets
COVIDetectioNet	1583	219	4290	6092
COVID-X-ray-5k	5000	520	–	5520

^aSource: https://github.com/tawsifur/COVID-19-Chest-X-ray-Detection.

^bSource: https://www.kaggle.com/tawsifurrahman/covid19-radiography-database.

^cSource: https://www.kaggle.com/paultimothymooney/chest-xray-pneumonia.