by DARVISHIAN, Farbod, TEICHBERG, Saul, MEYERSFIELD, Sanford, URMACHER, Carlos D
Published in Annals of clinical and laboratory science (01.04.2001)

by NIELSEN, S. L, PETITO, C. K, URMACHER, C. D, POSNER, J. B
Published in American journal of clinical pathology (01.12.1984)

by Lauwers, G Y, Wahl, S J, Urmacher, C D
Published in The American journal of gastroenterology (01.06.1991)