1. Kirby Institute, UNSW Sydney , High Street, Kensington, NSW 2052, Australia
2. Institute for Health and Aging, University of California , 490 Illinois Street, 12th Floor, Box 0646, San Francisco, CA 94158, USA
3. Biostatistics Excellence Centre, Faculty of Medicine, Chulalongkorn University , Phayathai Road, Pathumwan, Bangkok 10330, Thailand
4. Cardiac Center, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital , Bangkok, Thailand