BibTex format
@article{Cookson:1997:10.1126/science.275.5296.41,
author = {Cookson, WO and Moffatt, MF},
doi = {10.1126/science.275.5296.41},
journal = {Science},
pages = {41--42},
title = {Asthma: an epidemic in the absence of infection?},
url = {http://dx.doi.org/10.1126/science.275.5296.41},
volume = {275},
year = {1997}
}