Problem: Using your previous PICOT question, identify the databases you would use to locate research articles that would be helpful in your search. Provide two research articles and to each article identify the study design and rate the strength of the evidence using the level of hierarchy pyramid. In your search, did you use the three major search strategies (1-keywords {from PICOT}, 2-subject headings, 3-title) and are you able to identify the fundamental differences between the databases? PICOT question : In individuals with major depressive disorder, how does electroconvulsive therapy compare to pharmaceutical therapy in terms of reducing depressive symptoms over six months? Need Online Tutoring?