Institution: | a Department of Medicine, Paris VI University, Paediatric Pulmonology & Allergy Service, Sick Children Hospital, 149 rue de Sèvres, 75015 Paris, France b CBMS Pasteur, Pasteur Institute & Hospital 211 rue de Vaugirard, 75015 Paris, France c Paediatric Rehabilitation Center, 78830 Bullion, France |