Oh shoot. I'm so sorry this happened to you. I always wear my cross unless it has to be removed for such purposes. I hope you find your wife's cross. Maybe talk with admin, surgery, ER, lost and found (???), Or wherever she was taken when this occurred. Again, I hope you find it.
I hope you have found it by now. If not, I would say speak to someone in hospital administration. When someone receives care all valuables should have been recorded and then you would check that all were there upon discharge. I hope you find it, if not administration can help you.
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