Journalist Jeanne Lenzer was interviewed on NPR's On The Media program last weekend, talking about drug compression suppression of negative data.
Her main points:
1.) Some patient deaths are considered "trade secrets" and are not reported
2.) New England Journal of Medicine reported last week that 97% of positive studies of antidepressants were published but only 8% of negative studies were reported as negative (the rest were either spun as positive or not reported at all).
3.) Data suppression is pervasive and affects far more than just antidepressant trials.