Title:The relationship between the positive identification of the embryo proper in equine pregnancies aged 18 to 28 days and its future viability : a field study / John R. Newcombe and Juan Cuervo-Arango.
Title:The effect of time of insemination with fresh cooled semen relative to ovulation on pregnancy and embryo loss rates in the mare / J. R. Newcombe and J. Cuervo-Arango. / The effect of time of insemination with fresh cooled transported semen and natural mating relative to ovulation on pregnancy and embryo loss rates in the mare
Title:Effect of type of semen, time of insemination relative to ovulation and embryo transfer on early equine embryonic vesicle growth as determined by ultrasound / Juan Cuervo-Arango and John R. Newcombe.
Title:The effect of manual removal of placenta immediately after foaling on subsequent fertility parameters in the mare / Juan Cuervo-Arango and John R. Newcombe.