- A new type of radiosensitive T-B-NK+ severe combined immunodeficiency caused by a LIG4 mutation. van der Burg, M., van Veelen, L.R., Verkaik, N.S., Wiegant, W.W., Hartwig, N.G., Barendregt, B.H., Brugmans, L., Raams, A., Jaspers, N.G., Zdzienicka, M.Z., van Dongen, J.J., van Gent, D.C. J. Clin. Invest. (2006)