There is a Yangzi Pet Hospital in Shizhou Middle Road, Nanshan District, Shenzhen, which is quite good, right here in Jingji Bai Na. My dog, Buddy, had a bad cough some time ago, and after a short exercise, he was out of breath. The most serious one was that he went into shock when he was excited. He was immediately sent to Yangzi Pet Hospital and was later rescued. A few days later, they gave Buddy a heart color Doppler ultrasound, and it seemed that a valve of the heart was not completely closed. Later, the doctor prescribed some medicine for heart disease, and he took it for about half a month. Now that Buddy is well, he doesn't cough much. It is better for him to gasp when he is excited. Their B-ultrasound and color ultrasound techniques are very good. I suggest you go to Yangzi pet hospital. The quality of doctors and medical technology are very good.