TY - GEN AU - DOYLE,T M AU - SPEARS,H N TI - A Johne's disease survey SN - 0042-4900 PY - 2004///0215 KW - Animals KW - Cattle KW - Mycobacterium avium subsp. paratuberculosis KW - Paratuberculosis N1 - Publication Type: Journal Article UR - https://doi.org/10.1136/vr.63.20.355 ER -