New Challenges in Gastrointestinal Endoscopy
PII: S0016-5085(09)01013-0
doi:10.1053/j.gastro.2009.06.034
© 2009 AGA Institute. Published by Elsevier Inc. All rights reserved.
PII: S0016-5085(09)01013-0
doi:10.1053/j.gastro.2009.06.034
© 2009 AGA Institute. Published by Elsevier Inc. All rights reserved.