| Azen, C; Koch, R; Friedman, E et al. (1996) Summary of findings from the United States Collaborative Study of children treated for phenylketonuria. Eur J Pediatr 155 Suppl 1:S29-32 |
| Koch, R; Wenz, E; Azen, C et al. (1993) The effect of nutrient intake on pregnancy outcome in maternal phenylketonuria. Ann N Y Acad Sci 678:348-9 |
| Platt, L D; Koch, R; Azen, C et al. (1992) Maternal phenylketonuria collaborative study, obstetric aspects and outcome: the first 6 years. Am J Obstet Gynecol 166:1150-60;discussion 1160-2 |
| Azen, C G; Koch, R; Friedman, E G et al. (1991) Intellectual development in 12-year-old children treated for phenylketonuria. Am J Dis Child 145:35-9 |
| Di Silvestre, D; Pandya, A; Koch, R et al. (1990) DNA haplotype analyses of patients with hyperphenylalaninemia. Am J Hum Genet 47:706-11 |
| Koch, R; Hanley, W; Levy, H et al. (1990) A preliminary report of the collaborative study of maternal phenylketonuria in the United States and Canada. J Inherit Metab Dis 13:641-50 |
| Lang, M J; Koch, R; Fishler, K et al. (1989) Nonphenylketonuric hyperphenylalaninemia. Am J Dis Child 143:1464-6 |
| Ledley, F D; Koch, R; Jew, K et al. (1988) Phenylalanine hydroxylase expression in liver of a fetus with phenylketonuria. J Pediatr 113:463-8 |
| Koch, R; Wenz, E; Bauman, C et al. (1988) Treatment outcome of maternal phenylketonuria. Acta Paediatr Jpn 30:410-6 |
| Koch, R; Friedman, E G; Wenz, E et al. (1986) Maternal phenylketonuria. J Inherit Metab Dis 9 Suppl 2:159-68 |
