3APA Citation:Hartford, J., Bian, Y., Mathews, P., De Rojas, J., Garg, A., Rasool, N., Schroder, S., & Trief, D. (2019). Prevalence and risk factorsof exposure keratopathy across different intensive care units.Cornea,38(9), 1124–1130.Variable and key conceptsList the important points of the article, variables, framework, and concepts mentioned.Were hypothesis stated or implied?What was the research question? Was it clearly stated?SamplingWho were the participants?How many? Was it enough?How were participants gathered (sampling plan)?Did any drop out? Why?Design and MethodHow was the research designed?Quantitative? Qualitative, mixed?Was it appropriate to answer the question?What data was collected?Was the data sufficient?What instrument was used? Survey? Interview? Questionnaire?