Field validation of secondary commercial data sources on the retail food outlet environment in the U.S.

Autor: Powell, Lisa M., Han, Euna, Zenk, Shannon N., Khan, Tamkeen, Quinn, Christopher M., Gibbs, Kevin P., Pugach, Oksana, Barker, Dianne C., Resnick, Elissa A., Myllyluoma, Jaana, Chaloupka, Frank J.
Zdroj: In Health and Place September 2011 17(5):1122-1131
Databáze: ScienceDirect
Externí odkaz: