1. Korea Disease Control and Prevention Agency. Major finding from KNHANES (2018) and KYRBSS (2019). Cheongju: KDCA; 2019.
2. Korea Disease Control and Prevention Agency & Ministry of Education. Statistics of the 14th Korea Youth Risk Behavior Survey. Cheongju: KDCA; 2018.
3. Korea Disease Control and Prevention Agency & Ministry of Education. Statistics of the 15th Korea Youth Risk Behavior Survey. Cheongju: KDCA; 2019.
4. Korea Disease Control and Prevention Agency & Ministry of Education. Major finding from School health examination and KYRBSS (2022). Cheongju: KDCA; 2023.
5. Chung J, Cho JJ. Use of qualitative research in the field of health. J Korean Acad Fam Med. 2008; 29(8): 553-62.