TY  - BOOK
AU  - Griffiths,M
TI  - Crash course: gastrointestinal system 
SN  - 9780723436201
PY  - 2012///
CY  - Edinburgh
PB  -  Elsevier
KW  - Gastrointestinal system
KW  - Gastrointestinal diseases
KW  - Examination questions
ER  -