Characteristics, treatment, and outcomes of Schizoid personality disorder: A systematic review of case report and case series PROSPEROInternational prospective register of systematic reviews Print | PDFCharacteristics, treatment, and outcomes of Schizoid personality disorder: A systematic review of case report and case seriesErick Said Pachacama Quishpe, Erik Damian Chicaiza Llumigusín, Elkin , automatically published records should be treated as any other PROSPERO registration. Further detail is provided here.CitationErick Said Pachacama Quishpe, Erik Damian Chicaiza Llumigusín, Elkin Javier Lamar Escobar, Kiara Alejandra Ortega Yumisaca, Diara Thais Rosero Miranda, Jorge Daniel Guzman Tapuy. Characteristics, treatment, and outcomes of Schizoid personality disorder: A systematic review of case