1. Commercial embryo transfer in North America and Australasia;Elsden,1977
2. The current status and future of commercial embryo transfer in cattle;Hasler;Anim Reprod Sci,2003
3. Embryo transfer for import and export and possible dangers of transmitting infectious disease;Mitchell,1977
4. The dangers of disease transmission by artificial insemination and embryo transfer;Philpott;Br Vet J,1993
5. Recent achievements and trends in the molecular diagnosis of bovine viral diseases—a view from the “OIE Collaborating Centre for the Application of Polymerase Chain Reaction Methods for the Diagnosis of Viral Diseases in Veterinary Medicine”;Belak;Dtsch Tierarztl Wochenschr,2006