[1] Vrije Univ Brussel Hosp, Ctr Genet Med, B-1090 Brussels, Belgium
[2] Vrije Univ Brussel, Sch Med, B-1090 Brussels, Belgium
[3] Vrije Univ Brussel Hosp, Ctr Reprod Med, B-1090 Brussels, Belgium
[4] Genet & IVF Inst, Fairfax, VA USA
[5] CMCO, SIHCUS, Serv Biol Reprod, Schiltigheim, France
[6] Univ Amsterdam, Acad Med Ctr, Ctr Reprod Med, Fertil Lab, NL-1105 AZ Amsterdam, Netherlands
[7] Guys Hosp, Guys & St Thomas NHS Fdn Trust, Dept Cytogenet, London SE1 9RT, England
[8] Guys Hosp, Guys & St Thomas NHS Fdn Trust, Ctr Preimplantat Genet Diag, London SE1 9RT, England
[9] UCL, UCL Ctr PGD, Dept Obstet & Gynecol, London WC1E 6BT, England
[10] Univ Athens, St Sophia Childrens Hosp, Med Genet Lab, Athens, Greece
[11] Sanatorium Repromeda, Brno, Czech Republic
[12] Melbourne IVF, Melbourne, Vic, Australia