I got into USC doing no science research. However, I'm a business major and did do research in the business field. My feeling on this matter is that if you want to do an MD alone, performing research is not a necessity. I instead decided to shadow a doc for 2 summers and I also volunteered at other clinical settings when I had the time to. I think the most impt. thing is having good clinical experience- having a VERY good understanding for what you are getting yourself into. Away from that, do what intriuges you the most..for me, majoring in business was fun and I enjoyed my experience making presentations, etc.