Thanks to the doctors in the Cardiovascular Department of the Fourth Hospital of Tianjin, who helped my father to have heart surgery. Now my father is very healthy and has been urging me to thank the doctors and nurses here again and again. My father's heart has been having problems. I think it should be treated as soon as possible, so I took my father to this hospital for treatment. After seeing the doctor, the doctor made a detailed examination for my father, and suggested that we let the elderly have a heart stent operation, and said that after doing this operation, a lot of pain of the elderly could be alleviated. We agreed after discussion, and so did the old man. An expert operated on the old man with great success. After the operation, my husband [with details]