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Table 2 Eligibility criteria

From: Bach Flower Remedies for psychological problems and pain: a systematic review

Population Patients with pain and/or psychological symptoms
Intervention Bach flower remedies only
Comparison Placebo
Outcomes Pain reduction, improvement of symptoms, adverse events
Timing No restriction
Setting No restriction
Study design For efficacy: all prospective, controlled studies; no sample size limitations
For harms: all prospective, controlled studies and all observational studies with a minimum sample size of 30.