Brunei has the second-highest Human Development Index among the Southeast Asia nations, after Singapore, and is classified as a  developed country . According to the International Monetary Fund (IMF), Brunei is ranked fifth in the world by gross domestic product per capita at purchasing power parity.slam is the official religion of Brunei, specifically that of the Sunni branch, as dictated by the Mudabh of Shafi'i. Two-thirds of the population, including the majority of Bruneian Malays and Bruneian Chinese, adhere to Islam.
Pediatric gastroenterologists generally provide treatment for the following: 1  Bleeding from the gastrointestinal tract. 2  Lactose intolerance. 3  Food allergies or intolerances. 4  Severe or complicated gastroesophageal reflux disease (reflux or GERD). 5  Inflammatory bowel disease. 6  Short bowel syndrome.ediatric gastroenterologists are specially trained to perform diagnostic tests of a childâs digestive system. Special instruments, such as endoscopes, are used to examine the inside of the digestive tract or obtain tissue samples (biopsies).
The subspecialty of internal medicine dedicated to the study of the GI tract, from esophagus to the anus. See Gastroenterologist, Cf Hepatology. gasÂ·troÂ·enÂ·terÂ·olÂ·oÂ·gy. The medical specialty concerned with the function and disorders of the gastrointestinal tract, including stomach, intestines, and associated organs. gastroenterology. /gasÂ·troÂ·enÂ·terÂ·olÂ·oÂ·gy/ (-enâ³ter-olÂ´ah-je) the study of the stomach and intestine and their diseases.