[1] Univ Coll Dublin, Our Ladys Hosp Sick Children, Natl Ctr Med Genet, Dublin 12, Ireland
[2] Univ Coll Dublin, Our Ladys Hosp Sick Children, Dept Med Genet, Dublin 12, Ireland
[3] Katholieke Univ Leuven, Dept Human Genet, European Themat Network Cyst Fibrosis, B-3000 Louvain, Belgium
[4] Katholieke Univ Leuven, Dept Human Genet, EMQN, European Mol Genet Qual Network, B-3000 Louvain, Belgium
[5] St Marys Hosp, Reg Mol Genet Lab, UK Neqas Mol Genet, Manchester M13 0JH, Lancs, England
[6] Univ Calif Los Angeles, Sch Med, Div Med Genet, Dept Pathol & Lab Med, Los Angeles, CA 90095 USA
[7] Univ Calif Los Angeles, Sch Med, Div Med Genet, Dept Pediat, Los Angeles, CA 90095 USA
[8] Univ Calif Los Angeles, Sch Med, Div Mol Pathol, Dept Pediat, Los Angeles, CA 90095 USA
[9] Univ Calif Los Angeles, Sch Med, Div Mol Pathol, Dept Pathol & Lab Med, Los Angeles, CA 90095 USA
[10] Duke Univ, Med Ctr, Dept Pathol, Durham, NC 27710 USA