Table 1. Levels of evidence and grading for the recommendations included in the review.

Levels of evidence and grading
KGCA (2018)
	Scottish Intercollegiate Guidelines Network
	Grading of Recommendations, Assessment, Development and Evaluation methodology reviews (GRADE)
JGCA (2018)
	Medical Information Network Distribution Service (MINDS) clinical guideline manual version 2.0
	(Only in palliative chemotherapy regimens)
CSCO (2021)
	CSCO levels of evidence and consensus
	CSCO recommendation grades
NCCN (2021)
	NCCN Categories of Evidence and Consensus
	NCCN Categories of Preference
ESMO (2016)
	Infectious Diseases Society of America-United States Public Health Service Grading System