determination test

The case of Stanisława Walasiewicz is often regarded as one of the reasons why the IOC has gradually dropped gender determination tests.

A diagnostics determination test for DPD deficiency is available and it is expected that with a potential 500,000 people in North America using 5-FU this form of testing will increase.

In 1980, after her shooting death as a bystander at an armed robbery, 1932 race winner Stanisława Walasiewicz was revealed to be intersex, and possibly ineligible to compete under modern gender determination tests.