1 disease that is common. 1 disease that is very rare. 28 diseases without any prevalence information. Causes of Barrel chest without any prevalence information The following causes of Barrel chest are ones for which we do not have any prevalence information.
Definition of flashback for English Language Learners. : a part of a story or movie that describes or shows something that happened in the past.
Flashbacks in Literature. Authors use flashbacks as a means of adding background information in the present events of their story. They interrupt a specific event within their story by using events that have already occurred or that have not been presented.