TY - GEN AU - Lehmann,G A TI - Upper and lower gastrointestinal endoscopy: are thinner endoscopes preferable? SN - 0013-726X PY - 1997///0114 KW - Endoscopes, Gastrointestinal KW - Equipment Design KW - Humans N1 - Publication Type: Comment; Editorial UR - https://doi.org/10.1055/s-2007-1005507 ER -