1. Persistence and parthenogentic cleavage of tubal ova in the mare;van Niekerk;Onderstepoort J Vet Res,1966
2. Retention of unfertilized ova in uterine tubes of mares;Steffenhagen;Am J Vet Res,1972
3. Differential transport of fertilized and unfertilized ova in the hamster;Ortiz;Biol Reprod,1984
4. Prostaglandin E2 hastens oviductal transport of equine embryos;Weber;Biol Reprod,1991
5. Mobility of the early equine conceptus;Ginther;Theriogenology,1983