1 China is has the largest population in the world, exceeding 1.3 billion. 2  Asia is home to the world's oldest human civilization and the greatest man-made structure, the Great Wall of China. 3  Though the Middle East is known as the land of Islam, a greater number of Muslims reside in South Asia.
The other 20 percent are comprised of restrictive procedures, such as the laparoscopic adjustable gastric band. The laparoscopic sleeve gastrectomy (LSG), a relative newcomer to bariatric surgery, is growing in popularity. The sleeve gastrectomy originated as the restrictive part of the duodenal switch operation.
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