In reply
We address each of the concerns of Brain et al regarding our article “Maternal exposure to magnetic fields during pregnancy in relation to the risk of asthma in offspring.”
Correspondence: Dr Li, Division of Research, Kaiser Permanente Northern California, 2000 Broadway, 5th Floor, Oakland, CA 94612 (dkl@dor.kaiser.org).
Author Contributions: Study concept and design: Li and Odouli. Acquisition of data: Li and Odouli. Analysis and interpretation of data: Li and Chen. Drafting of the manuscript: Li. Critical revision of the manuscript for important intellectual content: Chen and Odouli. Statistical analysis: Li and Chen. Obtained funding: Li. Administrative, technical, and material support: Li and Odouli. Study supervision: Li.
Financial Disclosure: None reported.