Increased production of interleukin-21, but not interleukin-17A, in the small intestine characterizes pediatric celiac disease

M. A. Van Leeuwen, D. J. Lindenbergh-Kortleve, H. C. Raatgeep, L. F. De Ruiter, R. R. De Krijger, M. Groeneweg, J. C. Escher, J. N. Samsom^*

^*Corresponding author for this work