learning how to read and understand a systematic review, including identifying the research question, population, intervention, outcomes, search strategy, results, synthesis, conclusions and recommendations, use of statistics, and limitations.

How to Read a Systematic Review 
Systematic Reviews and if included meta-analyses are in-depth reviews of a specific clinical question.  The systematic review contains the narrative portion and the meta-analysis contains the data and graphs portion. Quality systematic reviews follow a strict set of criteria for creation.
Instructions:
Watch the video. https://youtu.be/Gv5ku0eoY6k
Read the article The Role of Vitamin D in the Age of COVID‐19.pdf
Using the systematic review article linked above to identify the following (You may copy and paste the information):
The research question (s).
The population (Clear inclusion/ exclusion criteria).
Intervention (s).
Specific outcomes 
An explicit search strategy
Results
The synthesis (the most important part)
Conclusions and recommendations
Use of statistics (meta-analysis).
Limitations