Effectiveness and Safety of Abluminal Biodegradable Polymer Sirolimus-eluting Stent (GENOSS® DES)

\<Inclusion Criteria\> 1. Adults over 19 years of age 2. Patients with typical symptoms or objective evidence of myocardial ischemia and eligible for coronary angioplasty. 3. Severe coronary artery stenosis suitable for GENOSS® DES insertion 4. Patients who agree to the research protocol and clinical follow-up plan and give written informed consent in the consent form approved by the Institutional Review Board/Ethics Committee of each research institution. \<Exclusion Criteria\> 1. Test subjects with known hypersensitivity or contraindications to the following drugs or substances: heparin, aspirin, clopidogrel, sirolimus, contrast medium (however, even subjects with hypersensitivity to contrast medium can be controlled by steroids and pheniramine) In this case, registration is possible, but if there is known anaphylaxis, it is excluded) 2. Patients who also received other drug-eluting stents 3. If you have a disease with a remaining life expectancy of less than 1 year 4. Pregnant or lactating women or women who may be pregnant 5. Cases in which the patient was admitted to the hospital due to psychogenic shock and the likelihood of survival is medically expected to be low. 6. Patients judged by researchers to be unsuitable for research