J. Etzel

发表

K. Nolop, M. Zitt, M. Frieri, 1998, Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology.

J. L. Williams, D. Faigel, D. Lieberman, 2012, Gastrointestinal endoscopy.

M. Kimmey, K. Kowdley, M. Saunders, 2008, Gastrointestinal endoscopy.