TY  - RPRT
TI  - Critical issues in digestive diseases.
AU  - Deborah D Proctor
PY  - 2003
DO  - 10.1016/s0272-5231(03)00103-5
UR  - https://pubmed.ncbi.nlm.nih.gov/14710694/
ID  - 14710694
ER  -