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, or choleliths, are solid masses formed from bile precipitates. These âstonesâ may occur in the gallbladder or the biliary tract (ducts leading from the liver to the small intestine). There are two types of gallstones: cholesterol and pigment stones. Both types have their own unique epidemiology and risk factors. Cholesterol