URLDate
Verified		Extra Software
Requirements
(if any)		Access
Conditions		Notes
http://dx.doi.org/10.1146/annurev.publhealth.25.101802.123020DOI Link
http://www.annualreviews.org/doi/full/10.1146/annu[...]05/07/2013Item is within a limited-access website
http://www.annualreviews.org/doi/pdf/10.1146/annur[...]05/07/2013PDF ReaderItem is within a limited-access website