[1] Univ Technol Sydney, Fac Nursing Midwifery & Hlth, Ctr Cardiovasc & Chron Care, Sydney, NSW 2007, Australia
[2] Curtin Univ, Sydney, NSW, Australia
[3] Univ NSW, Liverpool Hosp, Dept Cardiol, Sydney, NSW, Australia
[4] St George Hosp, Sydney, NSW, Australia
[5] Childrens Hosp Westmead, Dept Psychol Med, Sydney, NSW, Australia
[6] Australian Catholic Univ, Cardiovasc Res Ctr, Melbourne, Vic, Australia