Can I ask for a refund if the ECG report is unqualified? Or free re-examination? (Someone has modified it, and there is no hospital seal, and the doctor's signature is not clear.)
That's not artificial modification, because the result of ECG machine can never guarantee that 100% is correct, even 50%. The doctor should write down his own judgment (this is unnecessary), and there is no need to stamp it. The signature is the doctor's handwriting, so you don't need to know everything.