Subcutaneous administration, higher age and lower renal function are associated with erythrocyte methotrexate accumulation in Crohn’s disease: a cross-sectional study

M M van de Meeberg, M L Seinen, H H Fidder, M Lin, B Oldenburg, N K de Boer, G Bouma, R de Jonge, M Bulatović Ćalasan, Dutch Initiative on Crohn and Colitis (ICC)

BMC Gastroenterol. 2022 Jul 30;22(1):365. doi: 10.1186/s12876-022-02439-y.