The science of doping and how cheating athletes pass drug tests
Cheats of Strength: 10 Next-Gen Olympic Doping Methods | WIRED
Drug improves endurance without need for exercise
10 Performance-enhancing Drugs That Aren't Steroids | HowStuffWorks
5 Supplements Clinically Proven To Increase Endurance In Athletes
Five performance-enhancing products that are fair game in improving race times - Canadian Running Magazine
The amateur's complete guide to blood doping
Some Banned Olympic Doping Drugs Have Actual Medical Uses
Performance Enhancing Hormone Doping in Sport - Endotext - NCBI Bookshelf
Drugs in sport - Curious
Doping In Endurance Sports: Why Some Athletes Use EPO & Steroids - EndurElite
Sport is still rife with doping | The Economist
10 Performance-enhancing Drugs That Aren't Steroids | HowStuffWorks
Doping in Endurance Sports - Adventure Medic
Rio Olympics Doping Facts: How Performance-Enhancing Drugs Work And The Risks
What does 'doping' mean in athletics and why do athletes take banned substances? - BBC News
5 Legal Ways to Dope - Outside Online
5 Supplements Clinically Proven To Increase Endurance In Athletes
MH's 6 best (and legal) performance-enhancing tips
10 Performance-enhancing Drugs That Aren't Steroids | HowStuffWorks
The amateur's complete guide to blood doping
Doping in Endurance Sports - Adventure Medic
Performance Enhancing Hormone Doping in Sport - Endotext - NCBI Bookshelf
Russia and Kenya take the podium in the athletics doping contest | The Economist
10 Performance-enhancing Drugs That Aren't Steroids | HowStuffWorks
10 Performance-enhancing Drugs That Aren't Steroids | HowStuffWorks
Kenya's Matthews Kisorio doped because he 'wasn't the only one' | Athletics | The Guardian
