If your undergraduate institution has a good subscription service, you can peruse some journals of particular relevance to the foot and ankle, such as JFAS, FAI, and JBJS. Finances are more difficult to follow, and less likely to be useful, since healthcare is in such a period of flux right now with regard to reimbursements, plans, etc. I would just talk with the doctors about their practices and ask (tactful) questions about how they keep their business running (hopefully successfully). I'd spend time reading more about personal finance than practice finance at this point, since you have so long to go.