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\bibitem{Yang_etal2021} Yang, Z., Cao, X., Guo, F. K., Nieves, J., \& Pavon Valderrama, M. (2021). Strange molecular partners of the Z(c)(3900) and Z(c)(4020). \textit{Phys. Rev. D}, \textit{103}(7), 074029--8pp.

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