TY  - RPRT
TI  - [Rectal biopsy in chronic ulcerative colitis].
AU  - E Pérez Fernández
AU  - L Falconi
AU  - T Kvasina
PY  - 1970
UR  - https://pubmed.ncbi.nlm.nih.gov/5497736/
ID  - 5497736
ER  -