Here is the CMT Uptime check phrase
PUBLICATIONS

Measurement of the Local Food Environment: A Comparison of Existing Data Sources

Morenoff, Jeffrey D; House, James S; Bader, Michael D. M.; Ailshire, Jennifer A. (2010). Measurement of the Local Food Environment: A Comparison of Existing Data Sources. American Journal of Epidemiology. 171(5), 609-617.