What is the difference between an EMR, EHR, and PHR? What type of tools and inf

What is the difference between an EMR, EHR, and PHR? What type of tools and information might you find in each?
*Plagiarism is a serious penalty; please make sure to use your own words and provide citations and references for any sources you utilize in your responses.
* Please make sure to run the spell checker and proofread your work; point deductions will be made for all spelling, grammatical, and punctuation errors.
* PLease upload a plagerism report