Also, another opportunity to keep in mind would be pharmaceutical internships. I've worked at Novartis and Celgene and both were 100% lab based research (I did neuroendocrine tumor work for one and drug-drug interactions for the other -- both very biochemistry/biophysics oriented, involving proteins and such in the basic pathways PLUS the developmental drugs. really cool stuff). Gives you excellent exposure to an (often overlooked) aspect of healthcare and they pay REALLY well. My advice: meet a recruiter or know a current employee. They get literally thousands of applications for one spot.