M. V. Cerezo, L. Sánchez-Espíldora, R. Alarcón, L. M. Soria-Reyes, and M. J. Blanca, “Psychometric Properties of the Negative and Positive Affect Scales (NAPAS) in Patients with Breast Cancer”, PST, vol. 38, no. 4, pp. 204–212, Nov. 2026.