RT Journal Article SR Electronic T1 Cyberattacks on Canadian health information systems JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1548 OP E1554 DO 10.1503/cmaj.230436 VO 195 IS 45 A1 Vinyas Harish A1 Alun Ackery A1 Kiran Grant A1 Trevor Jamieson A1 Shaun Mehta YR 2023 UL http://www.cmaj.ca/content/195/45/E1548.abstract