6Ambe P, Weber SA, Schauer M, et al. Swallowed foreign bodies in adults [J]. Dtsch Arztebl Int, 2012,109(50):869- 875.
7Ma J, Kang DK, Bae JI, et al. Value of MDCT in diagnosis and management of esophageal sharp or pointed foreign bodies according to level of esophagus [J]. AIR Am J Roentgenol, 2013,201 (5) :W707-711.
8Pinto A, Muzj C, Gagliardi N, et al. Role of imaging in the assessment of impacted foreign bodies in the hypopharynx and cervical esophagus [J]. Semin Ultrasound CT MR, 2012,33 ( 5 ) : 463 -470.
9ASGE Standards of Practice Committee, Ikenberry SO, Jue TL, et al. Management of ingested foreign bodies and food impactions [ J ]. Gastrointest Endosc, 2011,73 (6) : 1085-1091.
10Young CA, Menias CO, Bhalla S, et al. CT features of esophageal emergencies [J]. Radiographics, 2008,28(6) : 1541- 1553.
