Side effects and adverse events related to intraligamentous injection of sclerosing solutions (prolotherapy) for back and neck pain: A survey of practitioners. Arch Phys Med Rehabil. 2006 Jul;87(7):909-13. More Prolotherapy research citations can be found on this page on our site Prolotherapy research.
Pringles history. Pringles were invented and first sold in 1968 in October in USA, but they were not sold across America till mid - 1970s. According to the patent, the inventor of Pringles brand potato chips was reputed Alexander Liepa from Montgomery, Ohio. It is produced by the company Procter & Gamble.
It is thought that the potato was first brought to the United States in the early 18th century by Irish immigrants who settled in New England. People in this country were slow to adopt the Irish potato and large scale cultivation of potatoes did not occur in the U.S. until the 19th century.