chronic disease Medicine 4 aging 3 elderly 3 inflammation 3 metabolic syndrome 3 nutrition 3 obesity 3 survival 3 COVID-19 2 Korea 2 adaptation 2 adolescents 2 artificial intelligence 2 biomarkers 2 cannabis 2 children 2 chronic kidney disease 2 computed tomography 2 dehydration 2 depression 2 efficacy 2 frailty 2 health-related quality of life 2 hypertension 2 implementation 2 intensive care units 2 machine learning 2 mortality 2 nursing 2