TY  - BOOK
AU  - Lehman, Glen A.
AU  - Schapiro, Melvin.
TI  - Flexible sigmoidoscopy: techniques and utilization 
SN  - 0683049097
U1  - 617/.5547  19
PY  - 1990///
CY  - Baltimore
PB  - Williams & Wilkins
KW  - Sigmoidoscopy
N1  - Includes bibliographical references and index
ER  -