Barbaro S, Van Ewijk R, Rode J (2025). Autonomy and Accountability: Strategic Behavior of German State Leaders During the COVID-19 Pandemic. Public Choice, https://doi.org/10.1007/s11127-025-01357-3.
Elizabeth PM, Pradella F, Su TT, Seiermann AU, Schoeps A, Ismail R, van Ewijk R, Winkler V, and Mahanani MR (2025). No evidence for an association between in utero Ramadan exposure and mean arterial pressure and random blood glucose in adulthood: evidence from SEACO in Malaysia. Journal of Nutritional Science 14: e87, 1–6. https://doi.org/10.1017/jns.2025.10060
Ortner J, Van Ewijk R, Velthuis L, Labenz C, Arslanow A, Nguyen-Tat M, Wörns M-A, Reichert MC, Farin-Glattacker E, Binder H, Fichtner UA, Graf E, Stelzer D, Galle PR, Lammert F (2025). Evaluating a population-based screening program for early detection of liver fibrosis and cirrhosis in primary care in Germany: a cost assessment study. BMJ Open, 15: e090442, https://doi.org/10.1136/bmjopen-2024-090442.
Witte P, Pradella F, Van Ewijk R. (2025). The Impact of Healthcare Provision on Immigrant Pregnancy Behaviors: the Case of Ramadan Fasting in Germany. Journal of Migration and Health, 100349, https://doi.org/10.1016/j.jmh.2025.100349.
Tran VM, Van Ewijk R, Pradella F (2025). Ramadan During Pregnancy and Offspring Age at Menarche in Indonesia: A Quasi-Experimental Study, Nutrients, 17(9), 1406; https://doi.org/10.3390/nu17091406.
Ortner J, Van Ewijk R, Velthuis L, Labenz C, Arslanow A, Nguyen-Tat M, Nagel M, Wörns M-A, Reichert
M C, Binder H, Farin-Glattacker E, Fichtner U, Graf E, Stelzer D, Galle P R, Lammert F (2023). Costs of a structured early detection program for advanced liver fibrosis and cirrhosis: insights on the plus of
Check-up 35+. Zeitschrift für Gastroenterologie.
Dignath C, Rimm-Kaufman S, Van Ewijk R, Kunter M. (2022). Teachers’ Beliefs about Inclusive Education and Insights on What Contributes to Those Beliefs: A Meta-analytical Study. Educational Psychology Review, 34(4), 2609-2660.https://doi.org/10.1007/s10648-022-09695-0
Labenz C, Arslanow A, Nguyen-Tat M, Nagel M, Wörns M-A, Reichert MC, Heil FJ; Mainz D, Zimper G; Römer B, Binder H, Farin-Glattacker E, Fichtner U, Graf E, Stelzer D, Van Ewijk R, Ortner J, Louis Velthuis L, Lammert F, Galle PR (2022). Structured Early detection of Asymptomatic Liver Cirrhosis: Results of the population-based liver screening program SEAL. Journal of Hepathology, 77(3): 695-701.
Stüber T, Van Ewijk R, Diessner J, Kühn T, Flock F, Felberbaum R, Blettner M, Kreienberg R, Jani W, Wöckel A, Singer S, Schwentner L (2017). Which patient-and physician-related factors are associated with guideline adherent initiation of adjuvant endocrine therapy? Results of the prospective multi-centre cohort study BRENDA II. Breast Cancer, 24(2): 281-287.
Von Korn H, Stefan V, Van Ewijk R, Chakraborty K, Sanwald B, Hemker J, Hink U, Ohlow M, Lauer B, Vagts D, Gruene S, Münzel T (2017). A Systematic Diagnostic And Therapeutic Approach For The Treatment Of Patients After Cardio-pulmonary Resuscitation: A Prospective Evaluation Of 212 Patients Over 5 Years. Internal and Emergency Medicine, 12(4): 503-511.
Schwentner L, Van Ewijk R, Kühn T, Flock F, Felberbaum R, Blettner M, Kreienberg R, Janni W, Wöckel A, Singer S (2016). Exploring patient- and physician-related factors preventing breast cancer patients from guideline-adherent adjuvant chemotherapy—results from the prospective multi-center study BRENDA II. Supportive Care in Cancer, 24(6): 2759-2766.
Singer S, Schwentner L, Van Ewijk R, Blettner M, Wöckel A, Kühn T, Felderbaum R, Flock F, Janni W, Kreienberg R (2016). The course of psychiatric co-morbidity in patients with breast cancer - results from the prospective multi-centre BRENDA II study. Psycho-Oncology, 25: 590-596.
Boeßert P, Hempel J, Van Ewijk R, Mann W, Haxel B (2016). Effekt der mikrochirurgischen Entfernung von Vestibularisschwannomen auf das Schmeckvermögen [Impact of Microsurgical Exstirpation of Vestibular Schwannomas on the Sense of Taste] Laryngo-Rhino-Otologie, 95(05): 332-335.
Kowalzik F, Zepp F, Hoffmann I, Binder H, Lautz D, Van Ewijk R, Knuf M, Tenenbaum T, Laass M, Reuter T, Schulze-Rath R, Marron M (2016). Disease burden of Rotavirus gastroenteritis in children in Germany: a retrospective hospital-based surveillance. The Pediatric Infectious Disease Journal, 35(1): 97-103.
Ebner F, Hancke K, Blettner M, Schwentner L, Wöckel A, Kreienberg R, Janni W, Van Ewijk R (2015). Aggressive intrinsic subtypes in breast cancer - a predictor of guideline adherence in older breast cancer patients? Clinical Breast Cancer, 15(4): e189-195.
Diessner J, Van Ewijk R, Weiss CR, Janni W, Wischnewsky MB, Kreienberg R, Blettner M, Wöckel A, Schwentner L (2015). Identifying the impact of inflammatory breast cancer on survival: a retrospective multi-center cohort study. Archives of Gynecology and Obstetrics, 292: 655-664.
Van Ewijk R(*), Wöckel A(*), Janni W, Singer S, Kreienberg R, Blettner M, Schwentner L (2015). Is guideline adherent adjuvant treatment an equal alternative for patients aged >65 who cannot participate in adjuvant clinical breast cancer trials? A retrospective multi-center cohort study of 4.142 patients. Archives of Gynecology and Obstetrics, 291: 631-640. (* Shared first-authorship)
Ebner F, Van Ewijk R, Wöckel A, Hancke K, Schwentner L, Fink V, Kreienberg R, Janni W, Blettner M (2015). Tumor biology in older breast cancer patients - what is the impact on survival stratified for guideline adherence? A retrospective multi-center cohort study of 5378 patients. The Breast, 24(3): 256-262.
Schwentner L, Wöckel A, König J, Janni W, Blettner M, Kreienberg R, Van Ewijk R (2014). Assessing the impact of CMF-like/Anthracycline-based/Anthracycline-Taxane-based/dose-dense chemotherapy in dependency of positive axillary lymph nodes on survival – A retrospective multi-center cohort study of 3.677 patients receiving adjuvant chemotherapy. European Journal of Cancer, 50: 2905– 2915.
Boeßert P, Grüttner C, Van Ewijk R, Haxel B (2014). Veränderung des Schmeckvermögens bei Patienten mit Vestibularisschwannom [Changes in taste ability in patients with vestibular schwannoma]. Laryngo-Rhino-Otologie, 93(07): 450-454.
Dahlhaus A, Guethlin C, Schall A, Taubenroth M, Van Ewijk R, Zeeb H, Albay Z, Schulz-Rothe S, Beyer M, Gerlach FM, Blettner M, Siebenhofer A (2014). Colorectal cancer stage at diagnosis in migrants versus non-migrants (KoMigra): study protocol of a cross-sectional study in Germany. BMC Cancer, 14: 123.
Thomas S, Klobuch S, Sommer M, Van Ewijk R, Theobald M, Meyer RG, Herr W (2014). Human CD8+ memory and EBV-specific T cells show low alloreactivity in vitro as well as in CD34+ stem-cell engrafted NOD/SCID/IL-2Rycnull mice, Experimental Hematology, 42(1): 28-38.
Schwentner L(*), Van Ewijk R(*), Kurzeder C, Hoffmann I, König J, Kreienberg R, Blettner M, Wöckel A (2013). Participation in adjuvant clinical breast cancer trials: Does study participation improve survival compared to guideline adherent adjuvant treatment? A retrospective multi-center cohort study of 9433 patients, European Journal of Cancer, 49: 553-563. (* Shared first-authorship)
Van Ewijk R, Schwentner L, Wöckel A, König J, Kreienberg R, Blettner M (2013). Trends in patient characteristics, treatment and survival in breast cancer in a non-selected retrospective clinical cohort study of 2600 patients, Archives of Gynecology and Obstetrics, 287(1): 103-110.
Schwentner L, Wöckel A, König J, Janni W, Ebner F, Blettner M, Kreienberg R, Van Ewijk R (2013). Adherence to treatment guidelines and survival in triple-negative breast cancer: A retrospective multi-center cohort study with 9156 patients, BMC Cancer, 13(1): 487.
Von Korn H, Stefan V, Van Ewijk R, Chakraborty K, Sanwald B, Andel R, Hemker J, Hink U, Ohlow M, Lauer B, Muenzel, T (2013). Treatment of coronary bifurcation lesions: stent-covering of the side branch with and without PCI of the side branch: a retrospective analysis of all consecutive patients, BMC Cardiovascular Disorders, 13(1): 27.
Lindeboom M, Van Ewijk R (2013), Early life conditions and later life inequality in health. In: Rosa Dias P, O’Donnell O (eds.) Health and Inequality (Research on Economic Inequality, Volume 21), Emerald Group Publishing Limited: 399-419.
Isphording IE, Diederichs M, Van Ewijk R, Pestel N. (2021). Der eindämmende Effekt von Schulen auf die Verbreitung von SARS-CoV-2 (No. 101). IZA Standpunkte