effectiveness and cost-effectiveness of bariatric (weight loss) surgery for obesity: a systematic review and economic evaluation. Health technology assessment
ISSN 2304-6244. doi:10.3329/bjo.v20i2.22022 . Pera, Eric. Polk Woman Known for Obesity Struggle Dies. The Ledger. 1 December 2006 [3 April 2018]. (原始内容存档于2007-12-25)