S. Kratzer

发表

J. Madura, E. Wiebke, N. A. Grieshop, 1994, The American surgeon.

L. Layfield, H. Cramer, J. Feczko, 1997, Diagnostic cytopathology.

J. Henley, I. Seo, S. Kratzer, 1993, The American journal of gastroenterology.