Corresponding Author

Department of Family Medicine, Chungbuk National University Hospital, Cheongju, Chungbuk, Republic of Korea

Department of Family Medicine, Chungbuk National University College of Medicine, Cheongju, Chungbuk, Republic of Korea

Correspondence

Hee-Taik Kang, Department of Family Medicine, Chungbuk-National University Hospital, 776 1-Soonwhan-ro, Seowon-gu, Cheongju, Chungbuk 28644, Republic of Korea.

Department of Family Medicine, College of Medicine, Chungbuk National University, 1 Chungdae-ro, Seowon-gu Cheongju, Chungbuk 28644, Republic of Korea.

Email: kanght0818@gmail.com