How should I write about sexual assault?

I'm writing a small book and there's a scene in which the main character falls against some brutal circumstances and is raped. I know it's never easy to write about it. However I want to show the reality of it but do so respectfully, especially to survivors.

I have been assaulted but never to the serious degree of rape, so fortunatly I lack the experience but it does make it difficult to write about. Its a difficult event to avoid in the book because some storylines later on lean on it.

I have done hours of research which includes looking at survivors personal experience, the psychological and physical effects and statistics. Non however lead me to a conclusion on how to approach the scene. I'll be thankful for whatever advice people have to give.
How should I write about sexual assault?
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