You are presented with a paragraph from a COVID-19 literature. Classify the topics of this piece of text by choosing from the following categories:

- Epidemic Forecasting: The content relates to predictions about the spread of COVID-19.
- Treatment: The paragraph discusses therapeutic methods or medication for COVID-19.
- Prevention: The content covers measures to prevent the spread of COVID-19.
- Mechanism: The paragraph explains the biological mechanisms of the virus.
- Case Report: The content is a report of a COVID-19 case.
- Transmission: The paragraph discusses how COVID-19 is transmitted.
- Diagnosis: The content is about diagnosing COVID-19 in individuals.

Your classification should be provided as an element within a JSON array. The array should be formatted with topics enclosed in double quotes and separated by commas, following the JSON format, for example: ["Topic1", "Topic2", ...]. Include all applicable topics within the array. Your output should be a valid JSON array, and no additional text should be included in your response.

Article:

This paper develops a scale that measures the perceived service quality of hospitals during a pandemic. To develop the scale, data from 206 respondents from India, was subjected to exploratory and confirmatory factor analysis. The newly developed scale was named PAND-SERVQUAL, which includes factors namely, assistance, facility & layout, trust, empathy, promptness, and knowledge. The resulting scale is likely to be useful for researchers exploring service quality research and health care quality as well. Findings will facilitate understanding patient's expectations regarding the service quality of hospitals during a pandemic.Supplemental data for this article is available online at https://doi.org/10.1080/00185868.2021.1939827 .
["Prevention"]