Standardization of the Korean version of the Patient Health Questionnaire-4 (PHQ-4)
Hyoun-Wook Kim 1, Cheolmin Shin 1, Seung-Hoon Lee 2, Changsu Han 1*
1Department of Psychiatry, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Republic of Korea, 2Department of Psychiatry, Veterans Health Service Medical Center, Seoul, Republic of Korea