I. Linares Vallejo, H. Hernández Herrero, J. J. Castrodeza Sanz, J. J. de la Gándara Martín, and E. Negueruela Azarola, “Diagnostic variability in a cohort of patients with multiple admissions in the last two decades”, Actas Esp Psiquiatr, vol. 31, no. 1, pp. 18–23, Jan. 2003.