This is such a poorly written study. There are no details on what (if anything) they controlled for. Their excuse for not providing more data is weak as well.

One of the big arguments against surgical transitioning for children is they might regret it years later. Asking them about it relatively shortly after surgery isn't useful for combating this argument.

This really needs to be a longitudinal study.

Paywalled but seems to be about FTM getting existing boobs removed, rather than MTF getting new ones installed.