RT Article T1 Rural-urban obesity trends among youth in the U.S.: Testing the socioeconomic gradient hypothesis A1 Mason, Philip B. A1 Porter, Jeremy Reed 1978- A1 Howell, Frank M. A2 Porter, Jeremy Reed 1978- A2 Howell, Frank M. LA English YR 2014 UL https://krimdok.uni-tuebingen.de/Record/1912694476 NO 2164-2559