Đang chuẩn bị liên kết để tải về tài liệu:
Báo cáo toán học: " ISSN Article type Submission date Acceptance date Publication date Article URL"

Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học được đăng trên tạp chí toán học quốc tế đề tài: ISSN Article type Submission date Acceptance date Publication date Article URL | Health Economics Review SpringerOpen0 This Provisional PDF corresponds to the article as it appeared upon acceptance. Fully formatted PDF and full text HTML versions will be made available soon. Changes in the Nutrient Content of American Diets Health Economics Review 2011 1 19 doi 10.1186 2191-1991-1-19 Kuo S Huang khuang@ers.usda.gov Sophia Wu Huang sshuang@ers.usda.gov ISSN 2191-1991 Article type Research Submission date 9 June 2011 Acceptance date 6 December 2011 Publication date 6 December 2011 Article URL http www.healtheconomicsreview.com content 1 1 19 This peer-reviewed article was published immediately upon acceptance. It can be downloaded printed and distributed freely for any purposes see copyright notice below . For information about publishing your research in Health Economics Review go to http www.healtheconomicsreview.com authors instructions For information about other SpringerOpen publications go to http www.springeropen.com 2011 Huang and Huang licensee Springer. This is an open access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Changes in the Nutrient Content of American Diets Kuo S. Huang Sophia Wu Huang U. S. Department of Agriculture Economic Research Service 355 E Street SW Washington DC 20024-3221 U. S. A. Kuo S. Huang corresponding author U. S. Department of Agriculture Economic Research Service 355 E Street SW Washington DC 20024-3221 U. S. A. E-mail khuang@ers.usda.gov Sophia Wu Huang E-mail sshuang@ers.usda.gov 1 Abstract As obesity and being overweight continue to increase in the United States public concern is growing about the quality of American diets. We compare the changes in nutrients contributed by major food groups in the periods 1953-1980 and 1981-2008 and find that there is reduced cholesterol intake and increased calcium intake .