Fischer A, Zimovetz E, Ling C, Esser D, Shoof N. Humanistic and cost burden of systemic sclerosis: a review of the literature. Autoimmun Rev. 2017 Nov;16(11):1147-54. doi: 10.1016/j.autrev.2017.09.010
Raghunathan K, Layton JB, Ohnuma T, Shaw AD. Observational research using propensity scores. Adv Chronic Kidney Dis. 2016 Nov;23(6):367-72. doi: 10.1053/j.ackd.2016.11.010
Jimenez-Murcia S, Granero R, Larrea ST, Sauvaget A, Grall-Bronnec M, Alvarez-Moya EM, Aguera Z, Aymami N, Gomez-Pena M, del Pino-Gutierrez A, Moragas L, Menchon JM, Fagundo AB, Sauchelli S, La Verde M, Aguglia E, Signorelli MS, Formoso JAF, Fernandez-Aranda F. Pathological gambling and substance use disorders: effects of early incidence and personality. Drugs Health Society. 2015 Jan;14(1):78. doi: 10.7202/1035550ar