Previous cases of doping at Winter Olympics (With 'Austrian skier expelled from Olympics for doping')

Following is a list of instances of doping detected at previous Winter Olympic Games, according to Xinhua:

Vancouver 2010:

Cross-country skier Kornelia Marek of Poland tested positive for EPO. Thirty other athletes were caught positive in the tests ahead of the Olympics.

Turin 2006:

Russian biathlete Olga Pyleva tested for cardephone. Wolfgang Rottmann, Wolfgang Perner, Martin Tauber, Juergen Pinter, Johannes Eder and Roland Diethart were kicked out of the Games after blood doping instruments were found in the Austrian cross-country ski and biathlon teams.

Salt Lake City 2002:

Cross-country skiers Johann Muehlegg of Spain, Larisa Lazutina and Olga Danilova, both of Russia, all tested for the blood doping substance NESP. British alpine skier Alain Baxter tested for methamphetamine and a Belarussian ice hockey player was caught for nandrolone.

Austrian cross-country skiers Marc Mayer and Achim Walcher were disqualified after the Games when blood doping instruments were found found in their rooms.

Nagano 1998:

Snowboarder Ross Rebagliati of Canada tested for marijuana but kept his snowboard gold because marijuana was not fully forbidden.

Calgary 1988:

Polish ice hockey player Jaroslav Morawiecki tested for testosterone.

Sarajevo 1984:

Mongolian cross-country skier Batsuch Purewjal tested for methadone.

Innsbruck 1976:

Soviet cross-country skier Galina Kulakova tested for ephedrine, Czechoslovakia ice hockey player Frantisek Pospisil for codeine.

Sapporo 1972:

German ice hockey player Alois Schloder tested for ephedrine.