TY  - RPRT
TI  - Sydney classification for gastritis.
AU  - A B Price
AU  - J J Misiewicz
PY  - 1991
DO  - 10.1016/0140-6736(91)90836-e
UR  - https://pubmed.ncbi.nlm.nih.gov/1670809/
ID  - 1670809
ER  -