At the dated check, the references listed below either did not resolve in
Crossref or DataCite, or carried a retraction notice. Each one is shown with the
registry record that put it there.
The 20 references without a DOI — listed, not checked
no DOI — not checkedPublic health surveillance for behavioral risk factors in a changing environment. Recommendations from the Behavioral Risk Factor Surveillance Team
no DOI — not checkedFowler FJ Jr . Survey research methods. Thousand Oaks, CA: Sage Publications, Inc., 2002.
no DOI — not checkedCenters for Disease Control and Prevention. Behavioral risk factor surveillance system summary data quality report. 2000. http://www.cdc.gov/brfss/technical_infodata/2000QualityReport.htm (accessed 21 Oct 2009).
no DOI — not checkedRace, ethnicity, and linguistic isolation as determinants of participation in public health surveillance surveys
no DOI — not checkedU.S. Census Bureau. DataFerret. http://dataferrett.census.gov/index.html (accessed 21 Oct 2009).
no DOI — not checkedU.S. Census Bureau. Census 2000 final response rates. http://www.census.gov/dmd/www/response/2000response.html (accessed 21 Oct 2009).
no DOI — not checkedCenters for Disease Control and Prevention. Behavioral Risk Factor Surveillance System 2000 survey data. http://www.cdc.gov/brfss/technical_infodata/surveydata/2000.htm (accessed 21 Oct 2009).
no DOI — not checkedCenters for Disease Control and Prevention. Behavioral Risk Factor Surveillance System operational and user's guide. Version 3. http://ftp.cdc.gov/pub/Data/Brfss/userguide.pdf (accessed 21 Oct 2009).
no DOI — not checkedU.S. Census Bureau. American FactFinder. http://factfinder.census.gov (accessed 21 Oct 2009).
no DOI — not checkedCampbell PR . Population projections for states by age, sex, race, and Hispanic origin: 1995 to 2025. http://www.census.gov/population/www/projections/ppl47.html (accessed 21 Oct 2009).
no DOI — not checkedSurveillance of certain health behaviors and conditions among states and selected local areas – Behavioral Risk Factor Surveillance System, United States, 2007
no DOI — not checkedBehavioral Risk Factor Surveillance, 1991: monitoring progress toward the nation's year 2000 health objectives
no DOI — not checkedResearch Triangle Institute. SAS-Callable SUDAAN (Release 9.1) Computer Software. Research Triangle Park, NC: Research Triangle Institute International, 2004.
no DOI — not checkedCenters for Disease Control and Prevention. Overview: BRFSS 2000. 2000. http://www.cdc.gov/brfss/technical_infodata/surveydata/2000/Overview_00.rtf (accessed 21 Oct 2009).
no DOI — not checkedSribney W . Comparison of standard errors for robust, cluster and standard estimators. http://www.stata.com/support/faqs/stat/cluster.html (accessed 21 Oct 2009).
no DOI — not checkedCenters for Disease Control and Prevention. Behavioral Risk Factor Surveillance System data quality report handbook. 2000. ftp://ftp.cdc.gov/pub/Data/Brfss/2000SummaryDataQualityReport.pdf (accessed 21 Oct 2009).
no DOI — not checkedHarris-Kojetin B . OMB guidance on nonresponse for household surveys. http://www.trb.org/committees/datasection/CriticalSection-OMBGuidance.pdf (accessed 21 Oct 2009).
no DOI — not checkedStataCorp. Stata (Release 9) Statistical Software. College Stations, TX: StataCorp LP, 2005.
no DOI — not checkedOdom DM Kalsbeek WD . Further analysis of telephone call history data from the Behavioral Risk Factor Surveillance System. Proceedings of the American Statistical Association, Survey Research Methods Section. Alexandria, VA: American Statistical Association, 398–403.
no DOI — not checkedU.S. Census Bureau. Statement of Census Bureau director C. Louis Kincannon on accuracy and coverage evaluation revision II. http://www.census.gov/Press-Release/www/releases/archives/directors_corner/000813.html (accessed 21 Oct 2009).
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