id	keyword
dentistry3000-351	year
dentistry3000-351	students
dentistry3000-351	covid-19
dentistry3000-351	study
dentistry3000-351	year students
dentistry3000-351	education
dentistry3000-351	learning
dentistry3000-351	preparedness
dentistry3000-351	impact
dentistry3000-351	undergraduate
dentistry3000-351	perception
dentistry3000-351	pandemic
dentistry3000-351	table