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.
Most gallstones are formed from cholesterol found in the gallbladderâs bile. Another type of gallstone, a pigment stone, is formed from calcium bilirubinate. Calcium bilirubinate is a chemical thatâs produced when your body breaks down red blood cells. This type of stone is more rare.