1. Department of Cardiology, Shunde Hospital, Southern Medical University, Foshan, Guangdong, China
2. Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
3. Department of Cardiology, Shunde Hospital, Southern Medical University, Jiazi Road 1, Lunjiao Town, Shunde District, Foshan, Guangdong 523808, China
4. The George Institute for Global Health, NSW, Australia