Athletics' world governing body has strongly rejected allegations of widespread doping in the sport.
The IAAF says a report in last weekend's Sunday Times are "sensationalist and confusing".
It's condemned the distribution and publication of medical data that was obtained from the organisation without consent.
The association says the results referred to were not positive tests, and the data did not prove doping.
Highland's Athletics Correspondent and Manager to the Ireland team that will go to the World Championships in Beijing says systematic doping is a serious problem...