Development of the international severe asthma registry (ISAR): a modified Delphi study

- Bulathsinhala, Lakmini; Eleangovan, Nevaashni; Belhassen, Manon; Harvey, Erin S.; Perez de Llano, Luis; Maitland-van der Zee, Anke H.; Papadopoulos, Nikolaos G.; FitzGerald, J. Mark; Porsbjerg, Celeste; Canonica, G. Walter; Backer, Vibeke; Rhee, Chin Kook; Heaney, Liam G.; Verhamme, Katia M. C.; Buhl, R; Cosio, BG; Carter, V; Price, C; Le, T; Stagno d'Alcontres, M; Gopalan, G; Tran, TN; Price, D; Menzies-Gow, Andrew; Gibson, Peter G.; Peters, Matthew; Hew, Mark; van Boven, Job F. M.; Lehtimäki, Lauri; van Ganse, Eric