J. Hopper
发表
A. Balows,
R. J. Ausherman,
J. Hopper,
1966,
Journal of the American Veterinary Medical Association.
P. Kokan,
G. D. Kettyls,
J. Hopper,
1968,
Canadian Medical Association journal.
G. D. Kettyls,
J. Hopper,
V. M. Verrall,
1968,
Canadian Medical Association journal.
J. Hopper,
1961
.