"Track and Field Tries to Understand New Rules for Intersex Athletes" - Gina Kolata
A decision issued by the Court of Arbitration for Sport requires athletes to take hormone-suppressing drugs who have X and Y chromosomes. “In addition to having Y chromosomes, the affected athletes must have what is called a disorder of sexual development, which means they have genitalia that are not typically male or female,” said Joshua Safer, MD, executive director of the Center for Transgender Medicine and Surgery at Mount Sinai and senior faculty of medicine, endocrinology, diabetes and bone disease at the Icahn School of Medicine at Mount Sinai. “The condition as defined by the ruling is extremely rare — but there are no reliable estimates on how often it occurs.”
— Joshua Safer, MD, Executive Director, Center for Transgender Medicine and Surgery at Mount Sinai, Senior Faculty, Medicine, Endocrinology, Diabetes and Bone Disease, Icahn School of Medicine at Mount Sinai