RT Journal Article SR Electronic T1 Phenytoin-induced gingival overgrowth JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 488 OP 489 DO 10.3949/ccjm.89a.21107 VO 89 IS 9 A1 Mitesh Karn A1 Ranjan Sah A1 Shabal Sapkota YR 2022 UL http://www.ccjm.org/content/89/9/488.abstract AB