3[3]Rosseel M, Koerelkoren E 1, De Schepper A. Esophageal perforation caused by a foreign body: a conservative approach. Acta Otorhinolaryngol Belg, 1990,44(4) :435.
5Rosseel M, Koerelkoren E 1, De Schepper A. Esophageal perforation caused by aforeign body: a conservative approach. Acta Otorhinolaryngol Belg, 1990,44(4) :435.