International severe asthma registry (ISAR): protocol for a global registry oleh J. Mark FitzGerald, Trung N. Tran, Marianna Alacqua, Alan Altraja, Vibeke Backer, Leif Bjermer, Unnur Bjornsdottir, Arnaud Bourdin, Guy Brusselle, Lakmini Bulathsinhala, John Busby, Giorgio W. Canonica, Victoria Carter, Isha Chaudhry, You Sook Cho, George Christoff, Borja G. Cosio, Richard W. Costello, Neva Eleangovan, Peter G. Gibson, Liam G. Heaney, Enrico Heffler, Mark Hew, Naeimeh Hosseini, Takashi Iwanaga, David J. Jackson, Rupert Jones, Mariko S. Koh, Thao Le, Lauri Lehtimäki, Dora Ludviksdottir, Anke H. Maitland-van der Zee, Andrew Menzies-Gow, Ruth B. Murray, Nikolaos G. Papadopoulos, Luis Perez-de-Llano, Matthew Peters, Paul E. Pfeffer, Todor A. Popov, Celeste M. Porsbjerg, Chris A. Price, Chin K. Rhee, Mohsen Sadatsafavi, Yuji Tohda, Eileen Wang, Michael E. Wechsler, James Zangrilli, David B. Price