RT Journal Article SR Electronic T1 Heart block in a 60-year-old man with undiagnosed cardiac sarcoidosis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E306 OP E309 DO 10.1503/cmaj.211149 VO 194 IS 8 A1 Ashar Pirzada A1 Andrew D. Moeller YR 2022 UL http://www.cmaj.ca/content/194/8/E306.abstract