RT Journal Article SR Electronic T1 Pseudo-Ludwig angina JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 577 OP 578 DO 10.3949/ccjm.86a.19014 VO 86 IS 9 A1 Andrew Tiu A1 Kamolyut Lapumnuaypol YR 2019 UL http://www.ccjm.org/content/86/9/577.abstract AB