전에도 저소득층 밀집지역과 소록도 등에서 봉사활동을 펼쳐온 그는 투병 뒤 세계 각국으로 활동 범위를 넓혔다.
He had previously volunteered in low-income neighborhoods and Sorok Island, but after battling the disease, he expanded the scope of his activities to countries around the world.