Voorbeelden van blood doping

• He tested positive for blood doping.

• Five of the top international marathons took a strong stance against blood doping.

• The attorney has handled blood doping cases with several athletes.

• Hamilton worked with him until his positive doping test for blood doping.

• Hamilton's initial blood sample tested positive for blood doping, but the lab mistakenly froze the backup sample, rendering it unsuitable for the required second test.

• Ricc later denied blood doping, but also stated that he was finished with the sport and that he wanted to train to become a barista.

• During the interview he detailed blood doping as well as the various performance enhancing drugs he used while on the team.

• Many athletes train at high altitude to take advantage of this effect -- a legal form of blood doping.