RT Journal Article SR Electronic T1 Difficulty swallowing solid foods; food ‘getting stuck in the chest’ JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 354 OP 363 DO 10.3949/ccjm.77a.09144 VO 77 IS 6 A1 Khan, Maqsood A. A1 John, Bijo K. A1 Lashner, Bret A. A1 Kirby, Donald F. YR 2010 UL http://www.ccjm.org/content/77/6/354.abstract AB