Covert Promotional Cancer-Related Content in Korean Search Engines: Computational Content Analysis of Naver and Google

Kyung Han You   ^{1 *} , PhD ;   Ho Young Yoon   ^{2 *} , PhD ;   Dalyong Kim   ³ , MD ;   Joo Han Lim   ⁴ , MD, PhD ;   Wonyoung Choi   ⁵ , MD, PhD ;   Hyun Woo Lee   ⁶ , MD, PhD ;   Sang-Cheol Lee   ⁷ , MD, PhD

¹ Department of Media and Communication Studies, Jeonbuk National University, Jeonju, Jeollabuk-do, Republic of Korea

² Division of Communication and Media, Ewha Womans University, Seoul, Seoul, Republic of Korea

³ Dongguk University Ilsan Hospital, Goyang, Gyeonggi-do, Republic of Korea

⁴ Inha University Hospital, Incheon, Incheon, Republic of Korea

⁵ National Cancer Center, Goyang, Gyeonggi-do, Republic of Korea

⁶ Ajou University Hospital, Suwon, Gyeonggi-do, Republic of Korea

⁷ Soonchunhyang University Hospital Cheonan, Cheonan, Chungcheongnam-do, Republic of Korea

*these authors contributed equally