@article{498727de42144718a58c2686bf22aca2,
title = "Changing methods of NCHS surveys: 1960-2010 and beyond.",
author = "Sirken, {Monroe G.} and Rosemarie Hirsch and William Mosher and Chris Moriarity and Nancy Sonnenfeld and {Centers for Disease Control}, {for Disease Control}",
year = "2011",
month = oct,
day = "7",
language = "English (US)",
volume = "60 Suppl 4",
pages = "42--48",
journal = "MMWR. Surveillance summaries : Morbidity and mortality weekly report. Surveillance summaries / CDC",
issn = "1546-0738",
publisher = "Epidemiology Program Office",
}