Commentary: "Never, never, never give up?"-MedSci.cn

Commentary: "Never, never, never give up?"

Lee, CH; Park, SJ; Kim, JB

Kim, JB (corresponding author), Univ Ulsan, Coll Med, Asan Med Ctr, Dept Thorac & Cardiovasc Surg, 88,Olymp Ro 43 Gil, Seoul 05505, South Korea.