High-frequency US catheter-based staging of early esophageal tumors☆
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☆ Reprint requests: Maurits J. Wiersema, MD, 200 First St., SW, Mayo Clinic, Eisenberg HA, Rochester, MN 55905.
PII: S0016-5107(02)78476-9
doi:10.1067/mge.2002.120099
© 2002 American Society for Gastrointestinal Endoscopy. Published by Elsevier Inc. All rights reserved.
