[1] Canc Res Malaysia, Familial Canc, Subang Jaya, Malaysia
[2] Canc Res Malaysia, Breast Canc Programme, Subang Jaya, Malaysia
[3] Inst Canc Res, Div Genet & Epidemiol, London, England
[4] Univ Malaya, Dept Pediat, Med Ctr, Kuala Lumpur, Malaysia
[5] Hosp Kuala Lumpur, Dept Genet, Kuala Lumpur, Malaysia
[6] Netherlands Canc Inst, Div Psychosocial Res & Epidemiol, Amsterdam, Netherlands
[7] Univ Malaya, Dept Obstet & Gynaecol, Med Ctr, Kuala Lumpur, Malaysia