http://www.akcchf.org/news-events/multimedia/podcasts/early-spay-and-neuter.html#.UVBcHbbgYRU.facebook

 

http://www.akcchf.org/research/funded-research/1488.html

 

http://www.thedogplace.org/Spay-Neuter/rethinking-spay-neuter_coats.asp

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