Journal of the American Veterinary Medical Association一篇关于kc的文章。我把
结论贴在后面了，全文在这里 http://avmajournals.avma.org/doi/pdf/10.2460/javma.231.11.1665
Conclusions
How does a veterinarian reconcile all of these data
to make the best possible recommendation regarding
optimal age at which to neuter male and female dogs
and cats? The author provides the following assertions:
• Animals housed at humane societies should be
treated as a population. Societal benefit resulting
from gonadectomy of unowned
