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: Causes, Symptoms and Treatments. Gallstones are stones or lumps that develop in the gallbladder or bile duct when substances in there harden. Some of the chemicals which exist in the gallbladder, such as cholesterol, calcium bilirubinate, and calcium carbonate, solidify into either one large stone or several small ones.