Table 1.

Beam numbers and distribution details of the testing set and the training & validation set for each tumor site.

	Head and neck	Liver	Lung	Prostate	Total
Number of patients	90	93	32	75	290
Training & validation	72	75	26	61	234
Testing	18	18	6	14	56
Number of beams	720	215	88	260	1283