D. Helper

发表

S. Bowyer, L. Wheat, D. Helper, 2010, Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.

D. Hathaway, D. Helper, J. Lash, 1988, The Journal of biological chemistry.

Cynthia S. Johnson, M. Chiorean, D. Helper, 2011, Digestive Diseases and Sciences.

D. Helper, 2009, European journal of radiology.

Cynthia S. Johnson, M. Khashab, M. Chiorean, 2010, Digestive Diseases and Sciences.

C D Langefeld, J J Smith, C. Langefeld, 1993, The American journal of gastroenterology.

D. Rex, B. Weston, D. Helper, 2003, Journal of clinical gastroenterology.

D. Helper, A. Aggarwal, 2014, Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association.

G. Sledge, R. Hawes, D. Rex, 1993, The American journal of gastroenterology.

Douglas K Rex, Richard Rothstein, D. Rex, 2008, Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association.

D. Rex, D. Helper, 2001, Endoscopy.

D. Helper, 2009, European journal of radiology.