Kalyva, E., Malakonaki, E., Eiser, C. and Mamoulakis, D. (2011) Health-related quality of life (HRQoL) of children and adolescents with type 1 diabetes (T1DM): Self and parental perception. Pediatric Diabetes, 20, 12, 34-40.
 Varni, J., Limbers, C. and Burwinkle, T. (2007) How young children can reliably and validly self-report their health-related quality of life? An analysis of 8.591 children across age-subgroups with PedsQL 4.0 generic core scales. Health Quality of Life Outcomes, 5, 1-13. doi:10.1186/1477-7525-5-1
 Emmanouilidou, E., Galli-Tsinopoulou, A., Karavatos, A. and Nousia-Arvanitakis, S. (2008) Quality of life of children and adolescents with diabetes of Northern Greek origin. Hippokratia, 12, 168-175.
 Varni, J., Burwinkle, T., Jacobs, J., Gottschalk, M., Kaufman, F. and Jones, K. (2003) The PedsQLTM in type 1 and type 2 diabetes. Reliability and validity of the pediatric quality of life inventoryTM generic scales and type 1 diabetes module. Diabetes Care, 26, 631-37. doi:10.2337/diacare.26.3.631
 Kook, S. and Varni, J. (2008) Validation of the Korean version of the pediatric quality of life inventoryTM (PedsQLTM) generic core scale in children and adolescents using the rasch model. Health and Quality of Life Outcomes, 6, 41-56.
 Roizen, R.S., Bauer, G., Medin, G., Bevilacqua, S. and Varni, J. (2008) Initial validation of the Argentinian Spanish version PedsQLTM4.0 Generic Core Scales in children and adolescents with chronic diseases: Acceptability and comprehensibility in low-income settings. Health and Quality of Life Outcomes, 5, 59-94.
 Jafari, P., Forouzandeh, E., Bagheri, Z., Karamizadeh, Z. and Shalileh, K. (2011) Health related quality of life of Iranian children with type 1 diabetes: Reliability and validity of the Persian veriosn PedsQL core scares and diabetes module. Health and Quality of Life Outcomes, 9, 104-108.
 Reinfjell, T., Diseth, T., Veenstra, M. and Vikan, A. (2006) Measuring health-related quality of life in young adolescents: Reliability and validity in the Norwegian version of the pedfiatric quality of life inventory 4.0 (PedsQL) generic core scale. Health and Quality of Life Outcomes, 4, 61-70.
 Amiri, P., Ardekani, E., Jalali-Farhani, S., Hosseinpanah, F., Varni, J. and Ghofranipour, F. (2010) Reliability and validity of the Iranian version of the pediatric quality of life inventory 4.0 generic core scale in adolescents. Quality of Life Research, 19, 1501-1508.
 McHorney, C., Ware, J., Lu, J. and Sherbourne, C. (1994) The MOS 36-item short-form health survey (SF-36). Tests of data quality, scaling assumptions and reliability across diverse patient groups. Medical Care, 32, 40-66.
 Simeoni, M.C., Auquer, P., Antoniotti, S., Sapin, C. and San Marco, J.L. (2000) Validation of a French health-related quality of life instruments for adolescents: The VSP-A. Quality of Life Research, 9, 393-403. doi:10.1023/A:1008957104322
 Nuboer, R., Borsboom, G.J., Zoethout, J.A., Koot, H. and Burining, J. (2008) Effects of insulin pump vs, injection treatment on quality of life and impact of disease in children with diabetes in a randomized prospective comparison. Pediatric Diabetes, 28, 291-296.
 Varni, J., Limbers, C. and Newman, D. (2008) Factorial invariance of the PedsQL 4.0 generic core scales child self-report across gender: A multi-group confirmatory factor with 11,356 children aged 5 to 18. Applied Research in Quality of Life, 3, 137-148.
 Gkoltsiou, K., Dimitrakaki, C., Tzavara C, Papaevangelou, V., Varni, J. and Tountas, Y. (2008) Measuring health-related quality of life in Greek children: Psychometric properties of the Greek version of the Pediatric Quality of Life Inventory 4.0 generic core scale. Quality of Life Research, 17, 299-305.
 Upton, P., Eiser, C., Cheung, I., Hutchings, H., Jenney, M. and Maddocks, A. (2005) Measurement properties of UK—English version of the Pediatric Quality of Life Inventory 4.0 (PedsQL) generic core scales. Health and Quality of Life Outcomes, 3, 22-27.
 Chen, X., Origasa, H., Ichida, F., Kamibeppu, K. and Varni, J. (2007) Reliability and validity of the Pediatric Quality of Life Inventory (PedsQL) Short Form 15 Generic Core Scales in Japan. Quality of Life Research, 16, 1239-1249.
 Fedler-Puig, F.E., Proksch, K., Varvi, J., Gander, H. and Topf, R. (2004) Validation of the German version of the Pediatric Quality of Life Inventory in childhood cancer patients off treatment and children with epilepsy. Quality of Life Research, 13, 223-234.