TY  - RPRT
TI  - Immunological problems in paratuberculosis.
AU  - B SIGURDSSON
PY  - 1956
DO  - 10.1128/br.20.1.1-13.1956
UR  - https://pubmed.ncbi.nlm.nih.gov/13303919/
ID  - 13303919
ER  -