Pascual, J. C., et al. “Association Between the Serotonin Transporter Gene and Personality Traits in Bordeline Personality Disorder Patients Evaluated With Zuckerman-Kuhlman Personality Questionnaire (ZKPQ)”. Actas Españolas De Psiquiatría, vol. 35, no. 6, Nov. 2007, pp. 382-6, https://actaspsiquiatria.es/index.php/actas/article/view/974.