What is a reasonable duration of time for dual anti-platelet therapy in patients who have undergone placement of a covered coronary stent?

First of all, this question hasn't been studied and second, few of us have a huge experience. Based on a series of exactly 2 patients, the possibility of thrombosis is ever present. I personally continue DAPT indefinitely in this circumstance. I am reluctant to stop it entirely; for elective procedu...