TY - JOUR T1 - [Foreign bodies in the esophagus and respiratory tract] JF - Canadian Medical Association Journal JO - CMAJ SP - 496 LP - 502 VL - 99 IS - 10 AU - R. Paulin AU - M. Bejerman Y1 - 1968/09/14 UR - http://www.cmaj.ca/content/99/10/496.abstract ER -