TY  - GEN
AU  - van den Heuvel,Tim R A
AU  - Pierik,Marie J
AU  - Jonkers,Daisy M
TI  - On the External Validity of Epidemiologic Data from Hospital-based IBD Cohorts
SN  - 1876-4479
PY  - 2017///0522
KW  - Data Accuracy
KW  - Hospitalization
KW  - statistics & numerical data
KW  - Humans
KW  - Inflammatory Bowel Diseases
KW  - epidemiology
KW  - Reproducibility of Results
N1  - Publication Type: Letter
UR  - https://doi.org/10.1093/ecco-jcc/jjw084
ER  -