The basic PEST analysis includes four factors: 1  Political factors are basically to what degree the government intervenes in the economy. 2  Specifically, political factors has areas including tax policy, labor law, environmental law, trade restrictions, tariffs, and political stability.
Gallstones are small, hard deposits that form in the gallbladder, a sac-like organ that lies under the liver in the upper right side of the abdomen. They are common in the wealthy countries, affecting 10-15% of adults. Most people with gallstones don't even know they have them.
Gallstones are stone-like substances that are found in the gallbladder. There are two types of gallstones: pigment stones and cholesterol stones. In the majority of patients cholesterol stones are present. In many people the cause for gallstones appears to be interaction between hereditary causes and the diet.