Gushchina was found to have used the banned steroid turinabol at the 2011 world championships and 2012 Olympics when her samples were retested using up-to-date methods. Guschina had already been stripped of relay medals from the 2008 and 2012 Games when teammates tested positive.
Klyashtornaya was banned for a turinabol violation from the 2012 Olympics, when she competed as Anna Nazarova. Gushchina hasn't competed since 2016 and Klyashtornaya last competed in 2015. CAS didn't respond to a request for comment.
The federation also added it had imposed a new four-year ban on a shot putter who violated a previous doping ban. After being suspended in 2017, Olesya Sviridova was found to have been "repeatedly working as a judge and secretary" at regional competitions, the federation said.
Doping bans bar athletes from taking any part in sports events, including as a coach or official, but Russia has only a patchy record on enforcing those rules.
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