1. Division of Pulmonary and Critical Care MedicineStanford School of MedicineStanfordCaliforniaUSA
2. Division of CardiologyStanford School of MedicineStanfordCaliforniaUSA
3. Division of AnesthesiologyMontreal Heart InstituteMontrealQuebecCanada
4. Division of Cardiothoracic SurgerySecond Xiangya Hospital of Central South UniversityChangshaHunanChina