Summer Abroad Programs?

I am an undergraduate student (sophomore) that is studying the Pre-Med curriculum (majoring in Psychology and Chemistry). What are some good programs that offer summer abroad studies, volunteering, or internships that correlate to medicine? I went to Asia last summer for a month and lived with a host family. I was an intern at a hospital throughout the week (8am-4pm) and then had the free time to do what I pleased whenever I was not working and on the weekends. I would love to have a similar experience somewhere in Europe (but I am open to any country other than the U.S. ... hence 'abroad'). Any help would be greatly appreciated!