Mental development in down syndrome mosaicismFISHLER, K; KOCH, R.American journal on mental retardation. 1991, Vol 96, Num 3, pp 345-351, issn 0895-8017Article

Clinical trial of off diet older phenulketonurics woth a new phenylalanine-free productCROWLEY, C; KOCH, R; FISHLER, K et al.Journal of mental deficiency research. 1990, Vol 34, pp 361-369, issn 0022-264X, 9 p., 4Article

Nonphenylketonuric hyperphenylalaninemiaLANG, M. J; KOCH, R; FISHLER, K et al.American journal of diseases of children (1960). 1989, Vol 143, Num 12, pp 1464-1466, issn 0002-922XArticle

School achievement in treated PKU childrenFISHLER, K; AZEN, C. G; FRIEDMAN, E. G et al.Journal of mental deficiency research. 1989, Vol 33, pp 493-498, issn 0022-264X, part 6Article