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\bibitem{Albaladejo_etal2016} Albaladejo, M., Nieves, J., Oset, E., Sun, Z. F., \& Liu, X. (2016). Can X(5568) be described as a B-s pi, B(K)over-bar resonant state? \textit{Phys. Lett. B}, \textit{757}, 515--519.

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