Former British Olympic medallist Kelly Sotherton has revealed she missed two doping tests during her career and called for all athletes to make their missed tests public.
Sotherton, speaking following last week's revelations that Mo Farah was a missed test away from a lengthy ban in the year before the London 2012 Olympics, said there should be more transparency surrounding missed tests.
Under UK Anti-Doping rules, athletes must provide their whereabouts for an hour a day, every day. If they are not available for testers three times within the space of a year that constitutes a doping offence.
Cyclist Chris Froome has also revealed he missed a test earlier this year during a short break in Italy with his wife when staff at the luxury hotel where they were staying refused to allow anti-doping testers to disturb the couple.
Sotherton, the former heptathlete who won bronze at the 2004 Athens Olympics, said: "I have nothing to hide and I think it's important to explain why you have missed a test because people can assume you are doping.
"It happens to even the most professional people and if you are more transparent, open and honest and the explanations are plausible then people will understand how it can happen. How many people have missed a deadline or a meeting by five or 10 minutes?"
Sotherton said she missed an IAAF test in 2007 because she left her training venue 10 minutes early and a UK Anti-Doping test in 2011 because she had made an error on the date when completing her whereabouts.
Double Olympic champion Farah missed two drugs tests prior to London 2012, but UK Anti-Doping said last week it had not regarded the missed tests as deliberate attempts to avoid the testers.
The disclosures came soon after a BBC TV documentary alleged that Farah's coach Alberto Salazar had practised doping techniques with American athlete Galen Rupp. Both men deny the allegations.