Abyar Hosseini, S. A., Monirpoor, N., & Mirzahoseini, H. "Structural model of loneliness based on narcissistic personality orientation and quality of parent-child relationship in individuals with borderline personality construction" .e18880 , Medical Journal of Mashhad university of Medical Sciences, 61, 5, 2018, e18880. doi: 10.22038/mjms.2021.18880