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:

Background: To identify and document the treatment experiences among patients with opioid use disorder (OUD) in the context of the rapid move from in-person to telephone counseling due to the COVID-19 pandemic. Methods: Participants (n = 237) completed a survey with open-ended questions that included the following domains: (1) satisfaction with telephone counseling, (2) perceived convenience, (3) changes to the therapeutic relationship, (4) perceived impact on substance use recovery, and (5) general feedback. Responses were coded using thematic analysis. Codes were subsequently organized into themes and subthemes (covering 98% of responses). Interrater reliability for coding of participants' responses ranged from 0.89 to 0.95. Results: Overall, patients reported that telephone counseling improved the therapeutic experience. Specifically, 74% of respondents were coded as providing responses consistently indicating "positive valency". "Positive valency" responses include: (1) feeling supported, (2) greater comfort and privacy, (3) increased access to counselors, and (4) resolved transportation barriers. Conversely, "negative valency" responses include: (1) impersonal experience and (2) reduced privacy. Conclusions: Telephone counseling presents its own set of challenges that should be investigated further to improve the quality of care and long-term patient outcomes.
["Prevention"]