Hello and welcome.
This is not an information request, but just a short message to introduce myself.
Unfortunately the expert you requested is not about at present but I know you will be wanting a quick answer. My name is XXXXX XXXXX X am an experienced small animal veterinary surgeon, I will be very pleased to work with you today if that is OK with you and will try my best to answer your question to your satisfaction.
Please give me ten minutes or so to think through your particular problem, prepare an answer, and then type things up. I will then get back to you and we can then talk things over.
Thank you so much.