Experiment	Measurement	Reference
BaBar	\([0.7 \pm 1.4\mbox{ (stat)} \pm 0.1\mbox{ (syst)}] \times 10^{-6}\)	PRL 102 132001 (2009)
Average	\(\mathbf{[0.7 \pm 1.4\mbox{ (combined)}] \times 10^{-6}}\)