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: The COVID-19 pandemic resulted in an exponential increase in telehealth. In response to the pandemic, Dartmouth-Hitchcock Health (D-HH) and its Norris Cotton Cancer Center (NCCC) closed non-essential in-person services on March 17, 2020 and began reopening on April 27, 2020. We examined outpatient telehealth utilization at D-HH and NCCC in the peri-pandemic period and compared utilization to the Academic Medical Center (AMC) overall and to other service lines. Methods: Weekly outpatient volumes, percentage telehealth, percentage video versus audio-only, and percentage of new patients were examined for D-HH, for the AMC, and for selected AMC-based service lines from January 1 to October 31, 2020. Results: Compared with the AMC overall and with five other primarily non-surgical specialties, oncology was lower in the (1) proportion of outpatient visits performed via telehealth (example week 7/12/20: oncology = 11%; AMC = 21%; mean of 5 other specialties = 38%) and (2) percentage of telehealth involving video versus audio-only (7/12/20: oncology = 19%; AMC = 58%; mean of 5 others = 60%). Oncology more closely resembled the surgical specialty of orthopedics (7/12/20: 2% telehealth; 10% of telehealth involved video). Oncology also demonstrated (1) a high proportion of outpatient visits involving procedures (oncology = 22%; orthopedics = 12%) and (2) no difference between telehealth and in-person visits in terms of the percentage involving new patients. Conclusions: During the peri-pandemic period, our oncology service demonstrated a lower than average incorporation of telehealth overall into their outpatient practice and a lower proportion of telehealth performed by video. Further understanding these results and the drivers behind them will be integral for redesigning outpatient oncology care with optimal integration of telehealth.
["Prevention"]