RT Journal Article SR Electronic T1 Possible association between myocardial infarction with nonobstructed coronary arteries and SARS-CoV-2 infection JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1633 OP E1636 DO 10.1503/cmaj.202106 VO 192 IS 48 A1 Shubham Agarwal A1 Haitham Al Hashimi A1 Sanjeev Kumar Agarwal A1 Usama Albastaki YR 2020 UL http://www.cmaj.ca/content/192/48/E1633.abstract