↑ (Inggeris) "The effect of retinoids on dendritic cell function" (PDF). Antigen Presentation Research Group, Division of Immunological Medicine, Clinical Research Centre; P. A. BEDFORD & S. C. KNIGHT. Dicapai pada 2010-12-11.
↑ (Inggeris) "Langerin is a natural barrier to HIV-1 transmission by Langerhans cells". Department of Molecular Cell Biology and Immunology, VU University Medical Center; de Witte L, Nabatov A, Pion M, Fluitsma D, de Jong MA, de Gruijl T, Piguet V, van Kooyk Y, Geijtenbeek TB. Dicapai pada 2010-12-11.
