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) 1  A mass, assemblage, or sum of particulars; something consisting of elements but considered as a whole. 2  A mass formed by the union of homogeneous particles; â in distinction from a compound, formed by the union of heterogeneous particles. ( 3 mathematics, obsolete) A set (collection of objects).