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.
This is the simplest and most common form of starting a new business. 1  It has no existence apart from its owner. 2  A sole proprietorship consists of only one individual; ownership by more than one person creates a partnership. 3  A married couple can be classified as a sole proprietorship.