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Table 2 Searches with keywords “treatment migraines” for each discussion forum and the number of topics included in the analysis after limitation

From: Psychoactive substances as a last resort—a qualitative study of self-treatment of migraine and cluster headaches

Discussion forum

Topics

Topics initiated last year

Included topics

Shroomery.org

317

13

4 (3 duplicates)

Bluelight.org

242

42

8 (3 duplicates)

Clusterbuster.org

87

4

1

Total included

  

13