TY - RPRT TI - Enzootic abortion in ewes; complement fixation test. AU - J T STAMP AU - J A A WATT AU - R B COCKBURN PY - 1952 DO - 10.1016/s0368-1742(52)80009-8 UR - https://pubmed.ncbi.nlm.nih.gov/14927745/ ID - 14927745 ER -