BMC Pregnancy and Childbirth · 2014 · 16 citations · 26 references
For a country as large as China, the centralized guideline for standardized preconception healthcare does have a very crucial positive role in reproductive healthcare, but it may not be suited for all populations. Regional authorities should consider the demographics and healthcare needs of the local population and modify the centralized guideline accordingly, as well as provide a better education and professional services for the public, to improve the quality of preconception services at both the regional and the national level.
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Cigarette Smoking Among Adults--United States, 2003
JAMA · 2005 · 1.5K citations
Kay Johnson, Samuel F. Posner, Janis Biermann et al. · PsycEXTRA Dataset · 2006 · 844 citations
Cigarette Smoking Among Adults, United States
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Jill Watson, Stephen C. Hadler, Clare A. Dykewicz et al. · PsycEXTRA Dataset · 1998 · 585 citations