[1] Fdn Blood Res, Scarborough, ME 04074 USA
[2] Johns Hopkins Univ, Sch Med, Baltimore, MD 21218 USA
[3] Univ Edinburgh, Edinburgh EH8 9YL, Midlothian, Scotland
[4] Univ N Carolina, Chapel Hill, NC 27515 USA
[5] Calif Dept Hlth, Berkeley, CA USA
[6] Penn Hosp, Philadelphia, PA 19107 USA
[7] Roche Mol Syst, Alameda, CA 94501 USA
[8] Cyst Fibrosis Fdn, Bethesda, MD USA
[9] Vincent Mem Obstet Assoc, Boston, MA USA
[10] Univ Calif Los Angeles, Sch Med, Los Angeles, CA 90024 USA
[11] Cent Manchester Hlth Care Trust, Manchester, Lancs, England
[12] Massachusetts Gen Hosp, Boston, MA 02114 USA
[13] Univ Miami, Sch Med, Miami, FL 33152 USA
[14] March Dimes Birth Defects Fdn, White Plains, NY USA
[15] Genzyme, Framingham, MA USA
[16] Univ Missouri, Columbia, MO 65211 USA
[17] Univ Penn, Philadelphia, PA 19104 USA
[18] Mt Sinai Sch Med, New York, NY 10029 USA
[19] Allegheny Univ Hlth Sci, Pittsburgh, PA USA
[20] Univ Rochester, Sch Med, Rochester, NY 14642 USA
[21] Univ Chicago, Chicago, IL 60637 USA
[22] Rapigene Inc, Bothell, WA USA
[23] Wolfson Inst Prevent Med, London, England
[24] Alliance Genet Support Grp, Washington, DC USA
[25] Kaiser Permanente, San Jose, CA USA