9.4. Analysis.
Comparison 9 Duration of sensory block: intravenous dexamethasone versus placebo, Outcome 4 Duration of sensory block: high/unclear versus low risk of bias subgroups.
Comparison 9 Duration of sensory block: intravenous dexamethasone versus placebo, Outcome 4 Duration of sensory block: high/unclear versus low risk of bias subgroups.