Definition: Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.
Input: Abstract: Foreign body aspiration in children is frequently associated with unilateral emphysema or atelectasis on chest x-ray. Two cases are reported of tracheal or bilateral foreign bodies in which the original chest x-rays were read as normal, but the history was suggestive of the foreign body aspiration. Early bronchoscopy can prevent the long-term morbidity that results from unrecognized tracheobronchial foreign bodies.

Normal radiographic findings after foreign body aspiration. When the history counts.