Roy Frei

Early Initiation of Anti-TNF is Associated with Favourable Long-term Outcome in Crohn’s Disease: 10-Year-Follow-up Data from the Swiss IBD Cohort Study

Roy Frei, Nicolas Fournier, Jonas Zeitz et al. · Journal of Crohn s and Colitis · 2019 · 57 citations · Full text

Medicine, Clinical Sciences, Immunology +16

Discontinuation and non-publication of randomised clinical trials supported by the main public funding body in Switzerland: a retrospective cohort study

Alain Amstutz, Stefan Schandelmaier, Roy Frei et al. · BMJ Open · 2017 · 56 citations · Full text

Public Health, Biostatistics, Comparative Effectiveness Research +16

Premature trial discontinuation often not accurately reflected in registries: comparison of registry records with publications

Reem Alturki, Stefan Schandelmaier, Kelechi Kalu Olu et al. · Journal of Clinical Epidemiology · 2016 · 20 citations

Pharmacy, Biostatistics, Clinical Epidemiology +12