Supplement 

Proceedings of the Obesity Programs of nutrition, Education, Research and Assessment (OPERA) group

The OPERA meeting, March 5-6th 2018, Naples Italy, was a forum for attendees to discuss and learn about obesity, related areas of medicine and health care including: prevalence and trends of obesity, causes of obesity, obesity and the associated health problems, diagnosis of obesity, nutrition, obesity and weight management, surgical and non-surgical methods, preventive approaches of obesity to tackle obesity and obesity-related disorders.

Sponsorship: This supplement was funded by Endocrinology Unit, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy.

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