Medical

The Bell Curve
http://www.leighbureau.com/speakers/AGawande/essays/BellCurve.pdf
The Malpratice Mess http://www.leighbureau.com/speakers/agawande/essays/malpractice.pdf
How to tell someone they're dying
http://www.jeromegroopman.com/articles/dying-words.html
How to make people smart
http://www.ktkiwanis.info/2006%20News/SaltEffects/Salt.html

This is more social than medical. It's about nurses in Lousiana breaking cycles of poverty.
http://www.newamerica.net/publications/articles/2006/swamp_nurse