Experiment	Measurement	Reference
BaBar	\([1.4 \pm 0.4\mbox{ (stat)} \pm 0.3\mbox{ (syst)} ^{+0.5}_{-0.3}\mbox{ (correlated systematic)}] \times 10^{-3}\)	PRL 93,181801 (2004)
Average	\(\mathbf{[1.4 ^{+0.7}_{-0.6}\mbox{ (combined)}] \times 10^{-3}}\)