Associated Press writers Ryan Foley in Cedar Rapids, Iowa; David Brandt in Jackson, Miss.; David Skretta in Lawrence, Kan.; Don Thompson in Sacramento, Calif.;and Alexa Olesen in Shanghai, China; and researchers Susan James in New York and Monika Mathur in Washington contributed to this report.
Contact the Washington investigative team at DCinvestigations (at) ap.org.
Whether for athletics or age, Americans from teenagers to baby boomers are trying to get an edge by illegally using anabolic steroids and human growth hormone, despite well-documented risks. This is the first of a two-part series.