Experiment	Measurement	Reference
BaBar	\([5.52 \pm 0.17\mbox{ (stat)} \pm 0.42\mbox{ (syst)} \pm 0.02\mbox{ (correlated syst)}] \times 10^{-3}\)	PRD 75 031101 (2007)
BaBar	\([5.13 \pm 0.22\mbox{ (stat)} \pm 0.28\mbox{ (syst)}] \times 10^{-3}\)	PRD 74 111102 (2006)
Average	\(\mathbf{[5.28 \pm 0.28\mbox{ (combined)}] \times 10^{-3}}\)