[1] Stanford Univ, Sch Med, Stanford, CA 94305 USA
[2] Univ Michigan, Ann Arbor, MI 48109 USA
[3] Univ Sydney, Westmead, NSW 2145, Australia
[4] Univ Wisconsin, Sch Med & Publ Hlth, Madison, WI USA
[5] Karolinska Inst, Stockholm, Sweden
[6] Harvard Univ, Sch Med, Boston, MA USA
[7] Fdn Bldg Strength, Palo Alto, CA USA
[8] Seattle Childrens Hosp, Seattle, WA USA
[9] Bambino Gesu Childrens Res Hosp, Rome, Italy
[10] NIH, Bethesda, MD 20892 USA
[11] Washington Univ, Sch Med, St Louis, MO USA
[12] Hop Raymond Poincare, Garches, France
[13] Univ Fed Minas Gerais, Belo Horizonte, MG, Brazil
[14] Childrens Hosp Philadelphia, Philadelphia, PA 19104 USA
[15] Evelina Childrens Hosp, London, England
[16] Childrens Natl Med Ctr, Washington, DC 20010 USA
[17] Univ Western Australia, Nedlands, WA 6009, Australia
[18] Dubowitz Neuromuscular Ctr, London, England
[19] Univ New Mexico, Sch Med, Albuquerque, NM 87131 USA
[20] Univ Florida, Gainesville, FL USA
[21] Natl Resource Ctr Oral Hlth Rare Med Condit, Oslo, Norway
[22] Univ Sao Paulo, Sao Paulo, Brazil