1. Gestation;Rossdale,1986
2. Veterinary obstetrics and genital diseases;Roberts,1986
3. Placentation and embryology;Ginther,1979
4. Morphological studies on the fetal membranes of the normal singleton foal at birth;Whitwell;Res Vet Sci,1975
5. Ultrastructural studies of the equine uterus and placenta following parturition;Steven;J Reprod Fertil,1979