World Athletics to introduce mandatory sex testing for female competitions / Controversial gender tests set to be introduced in athletics for all athletes / Female athletes to require biological sex test to 'protect the integrity of the sport' / Who's "woman" enough: The long history of sex testing in sports / 'Tested' investigates long history of sports sex testing / Imane Khelif controversy shows how sex testing in women's sports puts regulators in an impossible bind / Olympics 2024: Boxing's gender debate shows how sex testing in women's sports puts regulators in impossible binds / The 100-year history of sex testing female athletes in elite sports / The Long, Sordid History of Sex Testing in Women's Sports / What does the tale of a Nazi man sneaking into women's sports have to do with sex testing at the Olympics?