Experiment	Measurement	Reference
BaBar	\([5.00 \pm 1.51\mbox{ (stat)} \pm 0.67\mbox{ (syst)}] \times 10^{-4}\)	PRD 77 011102 (2008)
Average	\(\mathbf{[5.00 \pm 1.65\mbox{ (combined)}] \times 10^{-4}}\)