P. Fretz
发表
C. Doige,
A. Allen,
P. Fretz,
1998,
Equine veterinary journal.
D. Leach,
C. Bowen,
P. Fretz,
1989,
Veterinary surgery : VS.
P. Fretz,
N. Cymbaluk,
J. Pharr,
1984,
American journal of veterinary research.
M. Hurtig,
C. Doige,
P. Fretz,
1988,
Canadian journal of veterinary research = Revue canadienne de recherche veterinaire.
J. Gordon,
R. Billinghurst,
P. Fretz,
1995,
Equine veterinary journal.
P. Fretz,
W. H. Crawford,
1985
.
P. Morley,
D. Macdonald,
S. Barber,
1994,
Equine veterinary journal.
A. Allen,
P. Fretz,
J. Bailey,
2000,
Canadian journal of veterinary research = Revue canadienne de recherche veterinaire.
P. Fretz,
Z. Li,
1992,
The Canadian veterinary journal = La revue veterinaire canadienne.
J. Textor,
P. Fretz,
D. J. Rutherford,
2007,
New Zealand Veterinary Journal.
P. Fretz,
1983
.
P. Fretz,
J. Donecker,
1983,
Journal of the American Veterinary Medical Association.
H. Townsend,
C. Doige,
A. Allen,
1996,
The Canadian veterinary journal = La revue veterinaire canadienne.
H. Townsend,
C. Doige,
A. Allen,
1994,
The Canadian veterinary journal = La revue veterinaire canadienne.
J. Caron,
M. Hurtig,
S. Barber,
1987,
Journal of the American Veterinary Medical Association.
D. Macdonald,
K. Baptiste,
D. Hamilton,
1999,
Veterinary journal.
K. Jacobs,
P. Fretz,
1982,
The Canadian veterinary journal = La revue veterinaire canadienne.
S. Barber,
P. Fretz,
1980,
The Veterinary clinics of North America. Small animal practice.
P. Dowling,
P. Fretz,
J. Bailey,
2001,
The Canadian veterinary journal = La revue veterinaire canadienne.
S. Barber,
P. Fretz,
J. Pharr,
2001,
Veterinary surgery : VS.
C. McIlwraith,
K. Jacobs,
P. Fretz,
1983
.
D. Leach,
H. Townsend,
K. Jacobs,
2008
.
S. Barber,
P. Fretz,
B. McLaughlin,
1983,
The Canadian veterinary journal = La revue veterinaire canadienne.
D. A. French,
G. D. Davis,
D. Holmberg,
1984
.
W. Hare,
P. Fretz,
1976,
Equine veterinary journal.
P. Fretz,
P. Little,
U. S. Lwin,
1974,
American journal of veterinary research.
J. Caron,
C. B. Riley,
S. Barber,
1998,
The Canadian veterinary journal = La revue veterinaire canadienne.
G. Searcy,
A. Allen,
P. Fretz,
1998,
Veterinary clinical pathology.
G. Matte,
A. Wilkinson,
A. Allen,
1999,
Veterinary surgery : VS.
J. Caron,
S. Barber,
P. Fretz,
1986,
Journal of the American Veterinary Medical Association.
J. Caron,
S. Barber,
P. Fretz,
1990,
Veterinary surgery : VS.
P. Fretz,
1973,
The Canadian veterinary journal = La revue veterinaire canadienne.
D H Leach,
D. Leach,
H. Townsend,
1983,
Equine veterinary journal.
C. Doige,
A. Allen,
P. Fretz,
1997,
Veterinary clinical pathology.
B. Murphy,
W. Humphrey,
J. Manns,
1979
.
P. Fretz,
R. Fischer,
1976,
The Canadian veterinary journal = La revue veterinaire canadienne.
P. Fretz,
1977
.
D. Leach,
C. Bowen,
P. Fretz,
1991,
Microsurgery.
P. Fretz,
E. Tulleners,
1983,
Journal of the American Veterinary Medical Association.
C. B. Riley,
S. Barber,
A. Cruz,
1996,
The Canadian veterinary journal = La revue veterinaire canadienne.
P. Fretz,
1980,
Veterinary Clinics of North America Large Animal Practice.
P. Fretz,
A. Turner,
1978
.
C. McIlwraith,
P. Fretz,
1983,
Journal of the American Veterinary Medical Association.
P. Fretz,
J. Pharr,
A. Turner,
1978,
Journal of the American Veterinary Medical Association.
J. Ferguson,
S. Barber,
P. Fretz,
1983,
Journal of the American Veterinary Medical Association.
P. Fretz,
J. Bailey,
1983,
The Canadian veterinary journal = La revue veterinaire canadienne.
R. Geor,
P. Fretz,
K. D. Lewis,
1990,
Journal of the American Veterinary Medical Association.
P. Fretz,
1977,
The Canadian veterinary journal = La revue veterinaire canadienne.
J. Gudmundson,
P. Fretz,
N. Cymbaluk,
1977,
The Canadian veterinary journal = La revue veterinaire canadienne.
B. Grahn,
C. Theoret,
P. Fretz,
1997,
The Canadian veterinary journal = La revue veterinaire canadienne.
V. Ganjam,
E. Clark,
P. Fretz,
1977,
Journal of the American Veterinary Medical Association.
J. Caron,
P. Fretz,
J. Pharr,
1986,
The Canadian veterinary journal = La revue veterinaire canadienne.
D. A. French,
P. Fretz,
J. Pharr,
1989,
Journal of the American Veterinary Medical Association.
M. Hurtig,
J. Naylor,
C. Doige,
1985
.
C. Doige,
P. Fretz,
J. Pharr,
1981,
Journal of the American Veterinary Medical Association.
M. Hurtig,
P. Fretz,
C. Farrow,
1985,
The Canadian veterinary journal = La revue veterinaire canadienne.
S. Barber,
P. Fretz,
J. Bailey,
1984,
Journal of the American Veterinary Medical Association.
D. A. French,
P. Fretz,
1990,
The Canadian veterinary journal = La revue veterinaire canadienne.
Diplomate Aczm,
Diplomate Acvs,
P. Fretz,
2007
.
D. Holmberg,
P. Fretz,
1980,
The Veterinary clinics of North America. Small animal practice.