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.
These may include: 1  Sole Proprietorships. 2  Business that are owned by a single owner, without a separate legal entity for holding or operating the company. 3  Any other business entity that has a small number of owners and stocks that are not publicly traded.