A Mobile Technology for Collecting Patient-Reported Physical Activity and Distress Outcomes: Cross-Sectional Cohort Study

Miyeon Jung   ^{1 *} , BS ;   SaeByul Lee   ^{2 *} , MD, PhD ;   Jisun Kim   ² , MD, PhD ;   HeeJeong Kim   ² , MD, PhD ;   BeomSeok Ko   ² , MD, PhD ;   Byung Ho Son   ² , MD, PhD ;   Sei-Hyun Ahn   ² , MD, PhD ;   Yu Rang Park   ³ , PhD ;   Daegon Cho   ¹ , PhD ;   Haekwon Chung   ⁴ , BSc ;   Hye Jin Park   ² , RN ;   Minsun Lee   ² , RN ;   Jong Won Lee   ² , MD, PhD ;   Seockhoon Chung   ⁵ , MD, PhD ;   Il Yong Chung   ² , MD

¹ Korea Advanced Institute of Science and Technology, Seoul, Republic of Korea

² Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea

³ Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea

⁴ Swallaby, Seoul, Republic of Korea

⁵ Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea

*these authors contributed equally