by Mitchell, G.B.B., Somerville, D.K.
Published in Research in veterinary science (01.04.2002)

by Mitchell, G.B.B, Somerville, D.K, Hopkins, G. (SAC Veterinary Services, Auchincruive, Ayr (United Kingdom))
Published in SCIEH Weekly Report (United Kingdom) (1997)

by Mitchell, G.B.B, Somerville, D.K. (Scottish Agricultural College Veterinary Science Division (SACVSD), Disease Surveillance Unit, Auchincruive, Ayr, Scotland (United Kingdom))
Published in SCIEH Weekly Report (United Kingdom) (1998)