[1] Norwegian Radium Hosp, Unit Med Genet, N-0310 Oslo, Norway
[2] Christie Hosp NHS Trust, Ctr Canc Epidemiol, Family Hist Clin, Manchester M20 4QL, Lancs, England
[3] Univ Aberdeen, Dept Med Genet, Aberdeen AB25 2ZD, Scotland
[4] Leiden Univ Hosp, Netherlands Fdn Detect Hereditary Tumours, NL-2333 AA Leiden, Netherlands
[5] Univ Dundee, Ninewells Hosp & Med Sch, Dept Surg, Dundee DD1 9SY, Scotland
[6] Univ Dundee, Ninewells Hosp & Med Sch, Dept Genet, Dundee DD1 9SY, Scotland
[7] Breast Screening Ctr, Family Hist Clin, Edinburgh EH11 2JL, Midlothian, Scotland
[8] Haukeland Hosp, Dept Med Genet, N-5521 Bergen, Norway
[9] Guys Hosp, Div Med & Mol Genet, London SE1 9RT, England
[10] Princess Ann Hosp, Dept Human Genet, Southampton SO16 5YA, Hants, England
[11] Univ Lund Hosp, Dept Oncol, SE-22185 Lund, Sweden
[12] Inst Curie, Unite Genet Oncol, F-75231 Paris 05, France
[13] German Canc Res Ctr, Div Epidemiol, D-69120 Heidelberg, Germany
[14] Belfast City Hosp Trust, No Ireland Reg Med Genet Ctr, Belfast BT9 7AB, Antrim, North Ireland
[15] Univ Pisa, Inst Pathol, I-56126 Pisa, Italy