GERD is often diagnosed simply by finding no improvement in heartburn symptoms in response to lifestyle changes and acid reflux medication. Gastroenterologists may also arrange the following investigations:
Trading blocs. A regional trading bloc is a group of countries within a geographical region that protect themselves from imports from non-members. Trading blocs are a form of economic integration, and increasingly shape the pattern of world trade. There are several types of trading bloc:
aggregate (plural aggregates) A mass, assemblage, or sum of particulars; something consisting of elements but considered as a whole. 1898, Arthur Berry, A Short History of Astronomy Chapter 12 - Herschel.