Great interview with NZ Professor of Physiology, Alison Heather, who co authored a study published this week . Not read all of it but so far looks good. Answers lots of common questions. Obviously hate the use of the word cis.
https://i.stuff.co.nz/sport/other-sports/114327152/even-before-birth-genetic-building-blocks-are-giving-athletes-born-male-a-massive-advantage-over-females