The coroner won't sign it.
There are many reasons why the medical examiner doesn't sign, which may be himself or the doctor. There are basically physical examination systems in secondary and above hospitals. All test scores are uploaded to the physical examination system and printed uniformly. The doctor's signature is also maintained, and the handwritten format can be maintained or printed. If there are special requirements for on-the-job physical examination, a specific form is needed to complete it.