[1] Sir Charles Gairdner Hosp, Perth, WA, Australia
[2] Univ Western Australia, Ctr Asthma Allergy & Resp Res, Perth, WA 6009, Australia
[3] Univ Western Australia, Sch Med & Pharmacol, Perth, WA 6009, Australia
[4] Natl Ctr Asbestos Related Dis, Perth, WA, Australia