BibTex format
@article{Pearce:2007:10.1136/thx.2006.070169,
author = {Pearce, N and Aït-Khaled, N and Beasley, R and Mallol, J and Keil, U and Mitchell, E and Robertson, C and ISAAC, Phase Three Study Group},
doi = {10.1136/thx.2006.070169},
journal = {Thorax},
pages = {758--766},
title = {Worldwide trends in the prevalence of asthma symptoms: phase III of the International Study of Asthma and Allergies in Childhood (ISAAC).},
url = {http://dx.doi.org/10.1136/thx.2006.070169},
volume = {62},
year = {2007}
}