Upper gastrointestinal series (or study), whereas the barium enema is called a lower gastrointestinal series (or study). In upper gastrointestinal series examinations, the barium sulfate is mixed with water and swallowed orally, whereas in the lower gastrointestinal series (barium enema), the barium contrast agent is administered as an enema through a small tube inserted into the rectum. Barium X-ray examinations are useful tools for the study of appearance and function of the parts of the gastrointestinal tract. They are used to diagnose and monitor esophageal reflux, dysphagia, hiatus hernia, strictures, diverticula, pyloric stenosis, gastritis, enteritis, volvulus, varices, ulcers, tumors, and gastrointestinal dysmotility, as
Colon Theater Ballet ballet performers died in a plane crash. Argentine ballet gained a higher profile during the 1980s. Maximiliano Guerra rose to the position of principal at the English National Ballet, and returned with that company to perform Swan Lake at the Colon Theater. Paloma Herrera was already well known while being a dance student at Colon Theater. Julio Bocca studied dance at the Colon, then went on to perform internationally. He founded Ballet Argentino in 1990, with a focus on young Argentinian dancers. Colon Theater Ballet helped launch the newly renovated Colon Theater during its 2010 season. Many internationally known ballet