Smith H V, Nichols R A B, Mallon M, Macleod A, Tait A, Reilly W J, Browning L M, Gray D, Reid S W J, Wastling J M
Scottish Parasite Diagnostic Laboratory, Stobhill Hospital, Glasgow G21 3UW, Scotland.
Vet Rec. 2005 May 28;156(22):710-1. doi: 10.1136/vr.156.22.710.