(AP) The World Anti-Doping Agency says it expects a breakthrough within weeks to catch athletes who cheat using human growth hormone.
WADA director-general David Howman says HGH testing, including of samples from Sochi Olympic athletes, should resume after being stalled by an appeal case last year.
Howman says a backlog of samples built up awaiting publication of peer-viewed results from two research projects involving 20,000 samples.
He says "in the next few weeks the publication will be accepted and therefore the test can be undertaken."
The Court of Arbitration for Sport requested additional proof of accurate HGH analysis when overturning a doping ban for two-time Olympic cross-country skiing champion Andrus Veerpalu.
A CAS panel said Veerpalu probably used HGH but statistics behind the test could produce false positives.