German Medical Insignia Assistance

I understand that questions similar to this have probably been asked before, but I've done the search feature and I have not found any fitting my question. I am putting together a late war German medical NCO impression. Specifically a Sanitätsunteroffizier. I'm getting a M43 blouse coming in but I need to know what to put on it. Thank you for the assistance and also, if you have any helpful things regarding medical uniforms in general it would be greatly appreciated.