Experiment	Measurement	Reference
Belle	\([5.67 \pm 0.91\mbox{ (stat)} \pm 0.85\mbox{ (syst)}] \times 10^{-3}\)	PRD (R)70,111103(2004)
Average	\(\mathbf{[5.67 \pm 1.25\mbox{ (combined)}] \times 10^{-3}}\)