ONBAŞI, Kevser, Fulya GÜNŞAR, Aytül Z. SİN, Ömür ARDENİZ, Ali KOKULUDAĞ, and Filiz SEBİK. 2005. “Common Variable Immunodeficiency (CVID) Presenting With Malabsorption Due to Giardiasis”. Turkish Journal of Gastroenterology 16 (2):111-13. https://www.turkjgastroenterol.org/index.php/tjg/article/view/1423.