TY  - BOOK
AU  - Sellink J.L. 
TI  - Examination of tghe small intestine by means of duodenal intubation 
SN  -  9020702939
AV  - RC803 S44 1971
PY  - 1971///
CY  - Leiden 
PB  - H.E. Sterfert Kroese N.V
ER  -