Correction: The use of bluetooth low energy Beacon systems to estimate indirect personal exposure to household air pollution.
Liao J., McCracken JP., Piedrahita R., Thompson L., Mollinedo E., Canuz E., De Léon O., Díaz-Artiga A., Johnson M., Clark M., Pillarisetti A., Kearns K., Naeher L., Steenland K., Checkley W., Peel J., Clasen TF., HAPIN investigators .
An amendment to this paper has been published and can be accessed via a link at the top of the paper.