1. Registering Clinical Trials
2. 2Food and Drug Administration Modernization Act of 1997 , Pub. L. No. 105-115, 113.
3. Buried Data Can Be Hazardous to a Company's Health
4. 5S Hensley, and L Abboud . Medical research has 'black hole' . 2004 ; June 4, Sect B:3.