Experiment	Measurement	Reference
BaBar	\([12.2 \pm 2.2\mbox{ (stat)} \pm 2.2\mbox{ (syst)}] \times 10^{-4}\)	PRD 74 (2006) 031103
Average	\(\mathbf{[12.2 \pm 3.1\mbox{ (combined)}] \times 10^{-4}}\)