J. R. Simmons

Use of the Guthrie bacterial inhibition assay to monitor blood phenylalanine for dietary treatment of phenylketonuria

E. Allred, F. Rohr, Melissa Turner, 1996 .

Reduction of false negative results in screening of newborns for homocystinuria.

J. R. Simmons, H. Levy, M. Peterschmitt, 1999, The New England journal of medicine.

Stability of amino acids and galactose in the newborn screening filter paper blood specimen.

J. R. Simmons, H. Levy, R. A. MacCready, 1985, The Journal of pediatrics.