Sentence examples for urine samples were swapped from inspiring English sources

McLaren also confirmed allegations that steroid-tainted urine samples were swapped for clean ones in Sochi with the help of Russia's intelligence and anti-doping officials.

"Well-known and elite athletes" were protected by the false reporting of lab results and the practice of sample-swapping, in which tainted urine samples were replaced with clean substitutes.

However Rodchenkov said that as many as 100 dirty urine samples were expunged during the Games.

Urine samples were taken three times a week to test for cocaine use.

Because the tests were supposed to remain anonymous, the urine samples were not labeled with the players' names.

The men's urine samples were then sent to two labs accredited by the World Anti-Doping andncy, and EPO tests were requested.

Because the tests were supposed to remain anonymous, the urine samples were not labeled with players' names.

Urine samples were analyzed for nitrogen.

Blood and urine samples were provided willingly by the patient.

Serum and urine samples were thawed and vortex mixed.

677 urine samples were used, 320 from prostate cancer patients and 357 from cancer-free men.