state-level obesity in the USA after correction for self-report bias: analysis of health surveys. Journal of The Royal Society of Medicine. 2006, 99 (5): 250–7
(原始内容存档于2020-07-27). Li, Yun. It took stocks only six days to fall into correction, the fastest drop in history. 全国广播公司商业频道. [2020-02-28]. (原始内容存档于2020-10-31)