Studies regarding post-transition operations for trans individuals?

Hey /r/ainbow,Earlier this evening I got into a minor argument about whether or not insurance should assist in paying for transitioning for transgender people, and that lead me to wonder if there are any worthwhile studies regarding post-SRS experiences, specifically about their quality of life after going through with the ordeal.I know there are a lot of people that have transitioned with surgery and all that seem satisfied, but I was curious as to if there has been any formal research done in regards to this. A Google search either turned up rather outdated results or a post on a news site declaring that transitioning doesn't help with no links to back the claim up :/Any assistance is appreciated!