[1] Woolcock Inst Med Res, Resp Technol, Sydney, NSW 2037, Australia
[2] Macquarie Univ, Sch Engn, Sydney, NSW 2109, Australia
[3] Univ Sydney, Sch Aerosp Mech & Mech Engn, Sydney, NSW 2006, Australia
[4] Macquarie Univ, Dept Biomed Sci, Fac Med Hlth & Human Sci, Sydney, NSW 2109, Australia
[5] Macquarie Univ, Sch Business, Dept Mkt, Sydney, NSW 2109, Australia