OK, this starts a substantial thread on the science & politics of the IAAF testosterone regulations, formally titled: ELIGIBILITY REGULATIONS FOR THE FEMALE CLASSIFICATION (ATHLETES WITH DIFFERENCES OF SEX DEVELOPMENT), put forward last April.
These regulations are fatally flawed https://t.co/h7VN08qxYb— Roger Pielke Jr. (@RogerPielkeJr) October 22, 2018