I can’t say I’ve regretted choosing the Army one bit. But then, I was already a doctor (PhD type) when I joined.
She should check out the AMEDD (Army Medical) at www.armymedicine.army.mil (sorry I don’t know how to make a link).
The Army has many training opportunities. Furthermore, they also offer loan assistance programs for professionals who join after receiving their advanced training. Since my PhD was paid through various programs, I did not have any loans to pay back, but for MDs who often incur tens of thousands in debt, this can be very attractive. Many of the students at the USUHS are Army.
The topic of adding links to other pages will give you the code for adding the AMEDD as an actual link. Look at the next to last example under the topic. Substitute your Army link for the www.w3.org shown in the example. Preview the link to see if it works by clicking on it or hovering your mouse over it. The link address should show up in the lower left of your browser.