RT Journal Article SR Electronic T1 Pernicious anemia presenting as glossitis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E434 OP E434 DO 10.1503/cmaj.191331 VO 192 IS 16 A1 Akira Kobayashi A1 Hiromichi Iwasaki YR 2020 UL http://www.cmaj.ca/content/192/16/E434.abstract AB