B. Pumar, A. Santos, A. Ayerbe, A. Espina, E. García, and P. González, “Longitudinal study of the stability of expresscd emotion in families of schizophrenic patients: A 9 - month folIow-up”., Span. j. psychol., vol. 4, no. 1, p. 65, Jan. 2001, Accessed: Nov. 14, 2024. Available: https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0101120065A