Internal and External Evidence relating to my PICOT question, health and medicine homework help

Internal and External Evidence relating to my PICOT question, health and medicine homework help

What are the specific internal and external evidence relevant to your PICOT?
What are the specific strengths and weaknesses of web-based search engine?
Thanks,
1. My PICOT question: Does repositioning of bed bound patients every two hours decrease the risk of pressure ulcer versus repositioning every 5 hours
1 page
Use peer reviewed nursing articles that that are less than 5 years, give 3 references
No plagiarism from previous papers