TY  - BOOK
AU  - Stein Ernst
TI  - Anorectal and colon diseases: textbook and color atlas of proctology 
SN  - 3540430393 (hc.)
PY  - 2003///
CY  - Berlin
PB  - Springer
KW  - Rectal Diseases
KW  - Colonic Diseases
ER  -