Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC)
Journal article published in 2009 by
C. K. W. Lai,
R. Beasley 
,
J. Crane,
S. Foliaki,
J. Shah,
S. Weiland,
N. Aït-Khaled,
H. R. Anderson,
M. I. Asher,
R. Beasley,
B. Björksten,
B. Brunekreef,
J. Crane,
P. Ellwood,
C. Flohr
and other authors.
,
J. Crane,
S. Foliaki,
J. Shah,
S. Weiland,
N. Aït-Khaled,
H. R. Anderson,
M. I. Asher,
R. Beasley,
B. Björksten,
B. Brunekreef,
J. Crane,
P. Ellwood,
C. Flohr
and other authors.
