Hennermann, J.B., A. Loui, A. Weber, et al. "Hyperphenylalaninemia in a premature infant with heterozygosity for phenylketonuria" Journal of Perinatal Medicine, 32.4 (2005): 383-385. Retrieved 21 May. 2013, from doi:10.1515/JPM.2004.073

Hennermann, J., Loui, A., Weber, A., et al. (2005). Hyperphenylalaninemia in a premature infant with heterozygosity for phenylketonuria. Journal of Perinatal Medicine, 32(4), pp. 296-385. Retrieved 21 May. 2013, from doi:10.1515/JPM.2004.073

Hennermann, J.B., A. Loui, A. Weber, et al. 2005. Hyperphenylalaninemia in a premature infant with heterozygosity for phenylketonuria. Journal of Perinatal Medicine. 32(4): 296-385. Retrieved 21 May. 2013, from doi:10.1515/JPM.2004.073