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.
More detailed description about gallstone disease. Gallstones are solid crystals of various salts that accumulate in the gallbladder or the ducts which transport the bile from the liver or into the intestines. Often, they cause no symptoms at all; they can, however, trigger a very severe attack.