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:

Introduction: In March 2020, due to the COVID-19 pandemic, there were increasing demands on medical and intensive care departments in the UK. Medical staff from surgical departments were redeployed. The aim of this study was to determine whether the department was able to maintain standards with the use of the physician associate / medical doctor (PA/MD) model of care. Methods: A mix of questionnaires and audit data was collected prospectively and compared with pre-COVID and the general surgical team which did not have PAs. Results: Sixty-five per cent of responses indicated an improvement compared with pre-COVID conditions and 35% indicated care was the same. The electronic discharge notification audit showed an 89% completion rate for orthopaedics compared with 73% for general surgery. Venous thromboembolism assessment compliance was better compared with general surgery. Conclusion: Overall, the study supports the hypothesis that a PA/MD model of care is non-inferior to a MD-only model of care and was effective.
["Prevention"]