Background Sources

1.  Opposing Viewpoints.  Preface to "Steroids in Sports".
Author: Dave Sheinin
Audience: Those interested in steroids affecting Mark McGwire and Rafael Palmeiro
Issue:  How steroids affected Mark McGwire, Rafael Palmeiro and baseball in general

2. Gale Virtual Reference. "Doping and Performance Enhancement: A New Definition"
Author: Eduardo Henrique De Rose and Marco Michelucci
Audience:  Those interested in effects of steroids in sports.
Issue:  Effects of steroids

3. Google. Professional Athlete Job Description.
Author:  stateuniversity.com
Audience:  Those interested in professional athlete descriptions
Issue:  Who pro athletes are what they do

4. Google Scholar.  Steroid and Nutritional Supplement Use in Professional Athletes
Author: Robert B. Millman M.D., Emil J. Ross B.A.
Audience:  Those interested in steroid use
Issue: steroid use in sports