Kamila Valieva failed a drug test for a banned substance before the Games.
15-year-old Russian skater Kamila Valieva tested positive for the banned heart medication trimetazidine in a sample collected on Christmas Day
Israel, Andorra, Argentina, Bolivia and Ukraine were also found non-compliant of the WADA Code and can no longer conduct anti-doping programs
Denis Oswald, the International Olympic Committee's permanent chair of the disciplinary commission, said Valieva claimed there was a mix-up at a Court of Arbitration for Sport (CAS) hearing into whether she should be allowed to continue competing.
Russia's 2011 world champion Sergei Bakulin and silver medallist Vladimir Kanaykin have also been banned for failing doping tests, RUSADA added on its website (www.rusada.ru).
The scandal revolves around accusations that money was demanded from top athletes to 'bury' medical tests showing drug use
