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:
All people groups, who either live in a particular region or have similar cultural roots. Peoples are broadly grouped into 17 blocs with affinities based on language, culture, religion, politics. In nearly every Bloc there are widely dissimilar and unrelated linguistic minorities, but often there is one particular culture that is dominant.