Yeşillik, S., and F. Demirel. “Anxiety and Depression Among Patients With Predominantly Antibody Deficiencies and the Importance of Early Diagnosis”. Asthma Allergy Immunology, vol. 19, no. 2, Aug. 2021, pp. 64-70, https://aai.org.tr/index.php/aai/article/view/612.