- Transiently reduced activity of carbamyl phosphate synthetase and ornithine transcarbamylase in liver of children with Reye's syndrome. Brown, T., Hug, G., Lansky, L., Bove, K., Scheve, A., Ryan, M., Brown, H., Schubert, W.K., Partin, J.C., Lloyd-Still, J. N. Engl. J. Med. (1976)