Cholecystitis by endoscopic retrograde cholangiopancreatography (ERCP) or during surgery. Complications from surgery are rare. In people unable to have surgery, gallbladder drainage may be tried. About 10–15% of adults in the developed world have gallstones. Women more commonly have stones than men and they occur more commonly after age 40. Certain ethnic groups are more often affected; for example, 48% of American Indians have gallstones. Of all people with stones, 1–4% have biliary colic each year. If untreated, about 20% of people with biliary colic develop acute cholecystitis. Once the gallbladder is removed outcomes are generally good. Without treatment, chronic cholecystitis
Body part as an object 1963 article, and the results replicated by Overton & Jackson. Their findings suggest younger children were more likely to use BPO pantomimes to create a tangible representation of the object they were pantomiming. Boyatzis & Watson suggests that the decrease in BPO pantomime usage with age is a result of developing symbolic maturity, as older children can use a less concrete representational form. Body part as object errors are defined as the use of BPO pantomimes in place of the IO pantomimes dominant in typical adult individuals. It has been debated whether the existence of BPO errors can be used