education human 4 Humans 3 Quality of Life 3 female 3 male 3 quality of life 3 Article 2 adult 2 controlled study 2 cross-sectional study 2 diabetes mellitus 2 feasibility study 2 follow up 2 glucose 2 glucose blood level 2 major clinical study 2 outcome assessment 2 psychology 2 questionnaire 2 Aged 1 Anxiety 1 COVID -19 1 COVID-19 1 Cardiovascular diseases 1 Child 1 Cross-Sectional Studies 1 Cross-sectional studies 1 DASS-21 scale 1 Dental students 1