[1] CHU, Hop Jean Bernard, Serv ORL, F-86021 Poitiers, France
[2] CHU, Serv Pediat, Hop Trousseau, F-75571 Paris 12, France
[3] CHU, Hop Robert Debre, Serv Bacteriol, F-75935 Paris 19, France
[4] CHU, Hop Robert Debre, Serv ORL Pediat, F-75935 Paris 19, France
[5] Hop Jean Verdier, Serv Pediat, F-93143 Bondy, France
[6] Dept Paris, Serv Vaccinat, F-75013 Paris, France
[7] Med Gen, F-37800 St Epain, France
[8] Inst Mutualiste Montsouris, Serv Bacteriol, F-75674 Paris 14, France
[9] CHU, Hop Trousseau, Serv ORL, F-75571 Paris 12, France
[10] Med Gen, F-91570 Bievres, France
[11] CHU, Hop Larrey, Serv ORL, F-31059 Toulouse 09, France