Zheng 2010b.

Methods	Participants were allocated by drawing lots, but no detailed information about blinding given
Participants	Participants with fever (temperature higher than 37.8 degrees) and with typical symptoms of influenza, diagnosed by a positive finding of real‐time RT‐PCR test in throat swabs. The eligible participants had no history of administration of any medicine in past 48 hours. The symptoms of influenza had lasted over 48 hours and within 72 hours Participants were allocated into 3 groups: 19 in the oseltamivir group, 14 in the TCM treatment group and 15 in the oseltamivir and TCM treatment group
Interventions	TCM versus oseltamivir versus TCM combined with oseltamivir
Outcomes	1. Total course of disease 2. Duration of flu symptoms (except cough) 3. Time until A/H1N1 virus disappeared 4. Symptom remission time of fever 5. Symptom remission time of cough
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Allocated patients by drawing lots
Allocation concealment (selection bias)	Unclear risk	Not mentioned
Blinding (performance bias and detection bias) All outcomes	Unclear risk	Not mentioned
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Unclear
Selective reporting (reporting bias)	Unclear risk	Unclear
Other bias	Unclear risk	Unclear
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not mentioned
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not mentioned