PT - JOURNAL ARTICLE AU - Krisberg, Kim TI - Cell phone popularity a barrier for public health data collection: More Americans forgoing phone landlines DP - 2009 Sep 01 TA - The Nation's Health PG - 1--12 VI - 39 IP - 7 4099 - http://www.thenationshealth.org/content/39/7/1.2.short 4100 - http://www.thenationshealth.org/content/39/7/1.2.full SO - Nations Health2009 Sep 01; 39