No abstract available
MeSH terms
-
Colon / diagnostic imaging*
-
Colonoscopy
-
Colorectal Neoplasms / diagnosis*
-
Colorectal Neoplasms / diagnostic imaging
-
False Negative Reactions
-
Humans
-
Proctoscopy
-
Rectum / diagnostic imaging*
-
Tomography, X-Ray Computed
-
Ultrasonography / instrumentation
-
Ultrasonography / methods