1. A quantitative immunological assay for pregnant mare serum gonadotropin;Allen;J. Endocr.,1969a
2. Variation in PMSG level between mares;Allen;J. Endocr.,1969b
3. Endocrinology of early pregnancy in the mare;Allen;Equine vet. J.,1970
4. The influence of foetal genotype upon endometrial cup development, and PMSG and progesterone production in equids;Allen;J. Reprod. Fert.,1975a
5. Prostaglandins in equine stud management;Allen;Vet. Ann.,1975b