NCHS Dataline

American Statistical Association. Roger Herriot Award [cited 2015 Sep 16]. Available from: http://www.amstat.org/sections/ssoc/rogerherriot.html.

Centers for Disease Control and Prevention (US), National Center for Health Statistics. 2015 National Conference on Health Statistics [cited 2015 Sep 16]. Available from: http://www.cdc.gov/nchs/events/2015nchs.

Ashman JJ Hing E Talwalker A. Variation in physician office visit rates by patient characteristics and state, 2012. NCHS Data Brief No. 312. Hyattsville (MD): National Center for Health Statistics (US); 2015. Also available from: http://www.cdc.gov/nchs/data/databriefs/db212.htm [cited 2015 Sep 16].

Centers for Disease Control and Prevention (US). Vital Statistics Rapid Release program [cited 2015 Sep 16]. Available from: http://www.cdc.gov/nchs/products/vsrr.htm.