1.   Addition of acetic acid to the urine sample dissolves the salts and clears the urine.

2.   All three provided identical urine samples.

3.   All three were barred in February for tampering with urine samples during out-of-competition tests.

4.   It was Karen Silkwood who had spiked her own urine samples.

5.   Whenever a patient returned for a clinic visit, a urine sample was collected and was analyzed for ethanol.

6.   ...urine samples.

7.   Each one hour excretion of PABA after instillation was obtained by subtracting background PABA from a one hour urine sample before instillation.

8.   All urine samples were analysed on one occasion.

9.   As well as the chatty bit about not forgetting the urine sample, both sides carry advertising.