COVID-19(7) Myocardial infarction(6) Percutaneous coronary intervention(5) Analysis(4) COVID-19 pandemic(4) Myocardial(4) disease(4) Patient(4) outcome(4) Diagnosis(4) Impact(4) Follow-up(3) STEMI(3) FFR(3) Primary outcome(3) conducted(3) management(3) Clinical practice(3) nonculprit.(3) secondary outcome(3) less(3) Mortality(3) London(3) presenting(3) Safe(3) bystander(3) no difference(3) reduced(3) pathway(3) retrospective(3)