Overcoming pain thresholds with multilevel models: An example using Quantitative Sensory Testing (QST) data
G. Hirschfeld, M. Blankenburg, M. Suess, B. Zernikow, PeerJ 3 (2015) 1–13.

Physician consultation in young children with recurrent pain - a population-based study
G. Hirschfeld, J. Wager, B. Zernikow, PeerJ 3 (2015) 1–12.

Minimally Clinically Significant Differences for Adolescents With Chronic Pain-Variability of ROC-Based Cut Points.
G. Hirschfeld, J. Wager, P. Schmidt, B. Zernikow, The Journal of Pain 15 (2014) 32–39.

Influence of parental occupation on access to specialised treatment for paediatric chronic pain -a retrospective study
J. Wager, A. Ruhe, G. Hirschfeld, C. Wamsler, M. Dobe, T. Hechler, B. Zernikow, Der Schmerz 27 (2013) 305–311.

Maintaining Lasting Improvements: One-Year Follow-Up of Children With Severe Chronic Pain Undergoing Multimodal Inpatient Treatment.
G. Hirschfeld, T. Hechler, M. Dobe, J. Wager, P. von Lützau, M. Blankenburg, J. Kosfelder, B. Zernikow, Journal of Pediatric Psychology 38 (2012) 224–236.