[1] Royal Childrens Hosp, Murdoch Childrens Res Inst, Parkville, Vic 3052, Australia
[2] Prince Wales Hosp, Dept Med Oncol, Randwick, NSW 2031, Australia
[3] Univ New S Wales, Sch Psychiat, Kensington, NSW 2033, Australia
[4] Royal Childrens Hosp, Genet Hlth Serv Victoria, Parkville, Vic 3052, Australia
[5] Royal Melbourne Hosp, Familial Canc Ctr, Melbourne, Vic, Australia
[6] Natl Canc Control Initiat, Carlton, Vic, Australia