Fig. 2From: Risk factors associated with radiolucent foreign body inhalation in adults: a 10-year retrospective cohort studySites of foreign bodies. Diagrams showing sites of foreign bodies in all cases (A, n = 114), the radiolucent group (B, n = 86), and the radiopaque group (C, n = 28). Numbers in circles are case numbers and the darkness of color represents the frequencyBack to article page