RT Journal Article SR Electronic T1 Mass under the lip JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 145 OP 146 DO 10.3949/ccjm.90a.22053 VO 90 IS 3 A1 Sagar Khanna YR 2023 UL http://www.ccjm.org/content/90/3/145.abstract AB