TY  - RPRT
TI  - A direct complement fixation test for infectious bronchitis virus using heat-inactivated chicken sera.
AU  - C D Bracewell
PY  - 1973
DO  - 10.1136/vr.92.17.452
UR  - https://pubmed.ncbi.nlm.nih.gov/4722792/
ID  - 4722792
ER  -