- Genetic heterogeneity in the cerebrohepatorenal (Zellweger) syndrome and other inherited disorders with a generalized impairment of peroxisomal functions. A study using complementation analysis. Brul, S., Westerveld, A., Strijland, A., Wanders, R.J., Schram, A.W., Heymans, H.S., Schutgens, R.B., van den Bosch, H., Tager, J.M. J. Clin. Invest. (1988)