Table 1. PSALSAR framework for systematic literature reviews.

STEPS	OUTCOMES	METHODS
1. PROTOCOL	Defined study scope	Research question, PICOC framework
2. SEARCH	Define the search strategy Search studies	Searching strings Search databases
3. APPRAISAL	Selecting studies Quality assessment of studies	Define inclusions and exclusions criteria Quality criteria
4. SYNTHESIS	Extract data Categorize data	Extraction template Sort the information according to the iterative definition into categories to make it suitable for additional analysis.
5. ANALYSIS	Data analysis Results and discussions Conclusions	Organization of the data into quantitative categories, descriptions, and narrative analysis Display the trend, point out gaps, and compare the results based on the analysis Generating conclusions and advice
6. REPORT	Report writing Journal article production	PRISMA methodology Summarizing the report’s findings for a wider audience