1. IIb/IIIa - watch patency – no medication
2. Angioplasty - watch patency - no recoil - IIb/IIIa or not
3. IIb/IIIa - angioplasty - watch patency - no recoil - IIb/IIIa or not
4. IIb/IIIa – angioplasty – recoil - angioplasty – no recoil – IIb/IIIa
5. IIb/IIIa- angioplasty – recoil – stenting - IIb/IIIa
6. Others