TABLE I. Number of Images Used for Training, Validation and Testing for Each Dataset.

Dataset 1	RSNA Pneumonia	9004	1126	1124
	Detection Challenge [22]
Dataset 2	COVID-19 Image	—	—	574
	Data Collection [20]
	+ RSNA Pneumonia
	Detection Challenge [22]
Dataset 3	COVID-19 Image	13 604	1278	300
	Data Collection [20]
	+ RSNA Pneumonia
	Detection Challenge [22]
	+ Figure 1 COVID19 Chest
	Xray Dataset Initiative [21]