TY  - RPRT
TI  - Bovine ostertagiasis: a changing epidemiological pattern?
AU  - K Bairden
AU  - J J Parkins
AU  - J Armour
PY  - 1979
DO  - 10.1136/vr.105.2.33
UR  - https://pubmed.ncbi.nlm.nih.gov/555116/
ID  - 555116
ER  -