Roy P, Vairamuthu S, Sakthivelan S M, Purushothaman V
Central University Laboratory, Madras Veterinary College, Tamilnadu Veterinary and Animal Sciences University, Madhavaram Milk Colony, Chennai 600 051, India.
Vet Rec. 2004 Aug 28;155(9):273-4. doi: 10.1136/vr.155.9.273.