Publications by authors named "Heejoo Ko"

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Work-related risk factors of sleep apnea: evidence from the Korean work, sleep, and health study.
Heejoo Ko, Seong-Sik Cho, Hye-Eun Lee, Jeehee Min, Mo-Yeol Kang

Int Arch Occup Environ Health· December 2025

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Rethinking clinical trial endpoints for evaluating serially delivered 'strategic radiotherapy' in oligometastatic or oligoprogressive metastatic disease.
Jee Suk Chang, Florence T H Wu, Heejoo Ko, Emma M Dunne, Sarah Baker

Cancer Lett· December 2025

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Work ability and health-related productivity loss by chronotype: Results from population-based panel study.
Heejoo Ko, Seong-Sik Cho, Mo-Yeol Kang

Sleep Health· October 2025

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Association of unmet healthcare needs with health-related productivity loss, work ability, and work engagement.
Heejoo Ko, Seong-Sik Cho, Dong-Wook Lee, Jaesung Choi, Mo-Yeol Kang

Ind Health· October 2025

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Associations of self-rated health, depression, and work ability with employee control over working time.
Heejoo Ko, Seong-Sik Cho, Jaesung Choi, Mo-Yeol Kang

Epidemiol Health· September 2025

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Unmanaged 'Managed Heart': Associations between Emotional Labour and Cardiovascular Disease Risk Factors.
Heejoo Ko, Seong-Sik Cho, Dong-Wook Lee, Jaesung Choi, Mo-Yeol Kang

J Occup Environ Med· September 2025

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The Impact of Comorbid Insomnia and Sleep Apnea (COMISA) on Work Ability: Results From Population-Based Panel Data in Korea.
Heejoo Ko, Seong-Sik Cho, Dong-Wook Lee, Jaesung Choi, Min-Seok Kim

J Sleep Res· June 2025

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Data profile: Korean Work, Sleep, and Health Study (KWSHS).
Seong-Sik Cho, Jeehee Min, Heejoo Ko, Mo-Yeol Kang

Ann Occup Environ Med· February 2025

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Correction: Hepatitis B surface antigen reverse seroconversion after hematopoietic stem cell transplantation according to the baseline serological marker levels and vaccination status: a single‑center database analysis.
Soo Young Kang, Heejoo Ko, Raeseok Lee, Sung-Soo Park, Seunghoon Han

Blood Res· November 2024

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Risk of Secondary Malignancies After Multiple Myeloma: A Nationwide Case-Control Cohort Study.
Heejoo Ko, Seunghoon Han, Sung-Soo Park, Suein Choi, Ja Min Byun

Clin Lymphoma Myeloma Leuk· October 2024

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Hepatitis B surface antigen reverse seroconversion after hematopoietic stem cell transplantation according to the baseline serological marker levels and vaccination status: a single-center database analysis.
Soo Young Kang, Heejoo Ko, Raeseok Lee, Sung-Soo Park, Seunghoon Han

Blood Res· October 2024

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The association of emotional labor and workplace violence with health-related productivity loss.
Heejoo Ko, Dohwan Kim, Seong-Sik Cho, Dong-Wook Lee, Jaesung Choi

J Occup Health· January 2024

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The physical activity paradox in relation to work ability and health-related productivity loss in Korea.
Heejoo Ko, Dohwan Kim, Seong-Sik Cho, Mo-Yeol Kang

Epidemiol Health· December 2023

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Risk of myocardial infarction, heart failure, and cerebrovascular disease with the use of valsartan, losartan, irbesartan, and telmisartan in patients.
Yung-Geun Yoo, Min-Jung Lim, Jin-Seob Kim, Han-Eol Jeong, HeeJoo Ko

Medicine (Baltimore)· November 2023

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Ranitidine Use and Incident Cancer in a Multinational Cohort.
Seng Chan You, Seung In Seo, Thomas Falconer, Chen Yanover, Talita Duarte-Salles, Heejoo Ko

JAMA Netw Open· September 2023

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Development and Validation of a Normal Tissue Complication Probability Model for Lymphedema After Radiation Therapy in Breast Cancer.
Ye-In Park, Jee Suk Chang, Heejoo Ko, Sang Hee Im, Jin Sung Kim

Int J Radiat Oncol Biol Phys· August 2023

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Incorporating axillary-lateral thoracic vessel juncture dosimetric variables improves model for predicting lymphedema in patients with breast cancer: A validation analysis.
Jee Suk Chang, Heejoo Ko, Sang Hee Im, Jin Sung Kim, Hwa Kyung Byun

Clin Transl Radiat Oncol· July 2023

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A Comparison of 2 Disease Burden Assessment Methods (3D Volume Versus the Number of Lesions) for Prognostication of Survival in Metastatic Melanoma: Implications for the Characterization of Oligometastatic Disease.
Jina Kim, Jee Suk Chang, Wonmo Sung, Jin Sung Kim, Tae Hyung Kim, Heejoo Ko

Int J Radiat Oncol Biol Phys· December 2022

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Dosimetric Comparison of Radiation Techniques for Comprehensive Regional Nodal Radiation Therapy for Left-Sided Breast Cancer: A Treatment Planning Study.
Heejoo Ko, Jee Suk Chang, Jin Young Moon, Won Hee Lee, Chirag Shah

Front Oncol· April 2021

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Highly Efficient, Color-Reproducible Full-Color Electroluminescent Devices Based on Red/Green/Blue Quantum Dot-Mixed Multilayer.
Ki-Heon Lee, Chang-Yeol Han, Hee-Don Kang, Heejoo Ko, Changho Lee

ACS Nano· November 2015

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Over 40 cd/A efficient green quantum dot electroluminescent device comprising uniquely large-sized quantum dots.
Ki-Heon Lee, Jeong-Hoon Lee, Hee-Don Kang, Byoungnam Park, Yongwoo Kwon, Heejoo Ko

ACS Nano· May 2014

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Highly efficient, color-pure, color-stable blue quantum dot light-emitting devices.
Ki-Heon Lee, Jeong-Hoon Lee, Woo-Seuk Song, Heejoo Ko, Changho Lee

ACS Nano· August 2013

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