1. Division of PulmonologyThe Children's Hospital of PhiladelphiaPhiladelphiaUSA
2. Division of NeurologyNemours Children's HospitalOrlandoFlorida
3. Santhera PharmaceuticalsLiestalSwitzerland
4. PharmaTurkuFinland
5. Divisions of NeurologyThe Children's Hospital of PhiladelphiaPhiladelphiaUSA
6. Department of Physical TherapyThe Children's HospitalPhiladelphiaUSA