D. J. Simpson

Use of ultrasound echography for early diagnosis of single and twin pregnancy in the mare.

D. J. Simpson, R. E. S. GREENWOOD, Sidney Ricketts et al. · PubMed · 1982 · 82 citations

Obstetric Imaging, Medical Ultrasound, Fertility +20

Preliminary studies on the use of an oral progestogen to induce oestrus and ovulation in seasonally anoestrous Thoroughbred mares

W. R. Allen, Valerie E. Urwin, D. J. Simpson et al. · Equine Veterinary Journal · 1980 · 53 citations · Full text

Fertility, Gynecology, Veterinary Research +24

Further Studies on the Use of Synthetic Prostaglandin Analogues for Inducing Luteolysis in Mares

W. R. Allen, F. Stewart, M. J. COOPER et al. · Equine Veterinary Journal · 1974 · 52 citations · Full text

Fertility, Veterinary Research, Reproductive Biology +18

The Experimental Infection of Ponies with Contagious Equine Metritis

H. Platt, JG Atherton, D. J. Simpson · Equine Veterinary Journal · 1978 · 35 citations

Observations on vaccine and post-infection immunity in contagious equine metritis

D.S. Fernie, Irene Batty, P. D. Walker et al. · Research in Veterinary Science · 1980 · 13 citations

Vaccination, Veterinary Vaccine, Post-infection Immunity +6