RT Journal Article SR Electronic T1 Oral leukoplakia and oral cancer JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 79 OP 80 DO 10.3949/ccjm.90a.22044 VO 90 IS 2 A1 Takeshi Onda A1 Kamichika Hayashi A1 Akira Katakura A1 Masayuki Takano YR 2023 UL http://www.ccjm.org/content/90/2/79.abstract AB