Tokyo 2020: What are the testosterone rules in women's athletics

The complex testosterone regulations in track and field have become an issue again at the Olympics after two teenagers from Namibia qualified for the women’s 200-meter final

Caster Semenya ruling: Why I changed my mind about rules

World Athletics planning tighter restrictions on transgender athletes

Black women athletes are still being scrutinized ahead of the

Tokyo 2020: What are the testosterone rules in women's athletics

Men with low testosterone could compete with women' – Russian

Court Rules Against Caster Semenya in IAAF Testosterone Case

Caster Semenya loses bid to have IAAF testosterone regulations

Testosterone limits for female athletes based on flawed science

Namibian teens vow to fight Olympics testosterone ban

Young Namibian sprinters, barred from 400, make women's 200-meter