1. Department of Occupational and Environmental Medicine Soonchunhyang University Cheonan Hospital Cheonan‐si South Korea
2. Department of Occupational and Environmental Medicine Dongguk University Gyeongju Hospital Gyeongju‐si South Korea
3. Department of Occupational and Environmental Medicine Dankook University Cheonan Hospital Cheonan‐si South Korea
4. Department of Preventive Medicine and Genomic Cohort Institute Yonsei University Wonju College of Medicine Wonju South Korea