Molecular partners of the X(3872) from heavy-quark spin symmetry: a fresh look V. Baru, E. Epelbaum, A. A. Filin, C. Hanhart and A.V. Nefediev EPJ Web Conf., 137 (2017) 06002 Published online: 22 March 2017 DOI: 10.1051/epjconf/201713706002