RT Journal Article SR Electronic T1 Corneal foreign bodies JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E419 OP E419 DO 10.1503/cmaj.211624 VO 194 IS 11 A1 Athithan Ambikkumar A1 Bryan Arthurs A1 Christian El-Hadad YR 2022 UL http://www.cmaj.ca/content/194/11/E419.abstract