TY  - RPRT
TI  - SERUM COMPLEMENT LEVELS IN ACTIVE ULCERATIVE COLITIS.
AU  - J FLETCHER
PY  - 1965
DO  - 10.1136/gut.6.2.172
UR  - https://pubmed.ncbi.nlm.nih.gov/14279721/
ID  - 14279721
ER  -