1 These bacteria cause most duodenal ulcers. When H. pylori bacteria infect the intestine, the infection can weaken the lining of the intestine.  You regularly take nonsteroidal anti-inflammatory drugs (NSAIDS), such as aspirin, ibuprofen, naproxen, or ketoprofen.
A sole proprietorship is the most common form of business organization. Itâs easy to form and offers complete control to the owner. It is any unincorporated business owned entirely by one individual. In general, the owner is also personally liable for all financial obligations and debts of the business.
Types of business entities. 1. Sole proprietorship. This is the simplest form of business entity, and it is used by more than 70 percent of businesses in the United States, according to the Small Business Administration. With sole proprietorship, one person is responsible for all of a company's profits and debts.