PubMed Tutorial
https://www.nlm.nih.gov/bsd/disted/pubmedtutorial/cover.html
PubMed: Search a PICO Question
https://www.youtube.com/watch?v=_pVxRw-y8-M
Medical Subject Headings (MeSH®) in MEDLINE®/PubMed®: A Tutorial
https://www.nlm.nih.gov/bsd/disted/meshtutorial/introduction/
Embase
https://www.elsevier.com/solutions/embase-biomedical-research/biomedical-literature
Embase Factsheet
https://www.elsevier.com/__data/assets/pdf_file/0008/118988/Embase_Fact_Sheet_Academic_2016.pdf
Quick Reference Guide: Endnote
http://endnote.com/sites/en/files/m/pdf/en-online-qrc.pdf