Need advice guys on these courses

[usmletaker2593]

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Hey guys,

I need some information about MPH and Physician Assistant courses.
Are they helpful in any way for my future application for residency?
I heard many getting into MPH if they fail to match.
Are there any other courses which i can get into,and simultaneously study for my steps.
Can you through some light on these courses and which one is better?
Are they difficult to get into?

Plz help guys.Thanks in advance