PT - JOURNAL ARTICLE AU - Lindsey Wahowiak TI - Surgeon general: Americans need safe places for walking: Call to action supports physical activity DP - 2015 Nov 01 TA - The Nation's Health PG - 1--20 VI - 45 IP - 9 4099 - http://www.thenationshealth.org/content/45/9/1.3.short 4100 - http://www.thenationshealth.org/content/45/9/1.3.full SO - Nations Health2015 Nov 01; 45