RT Journal Article SR Electronic T1 Esophageal Foreign Body vs Asthma JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 184 OP 187 DO 10.3122/jabfm.16.2.184-a VO 16 IS 2 A1 Abid U. Ghafoor A1 Saif M. Siddiqui A1 James F. Mayhew A1 Robin A. Dyleski A1 Samiya Razzaq YR 2003 UL http://www.jabfm.org/content/16/2/184.2.abstract AB