LOS ANGELES – OCTOBER 26: Trouper Hope, a Pet Assisted Therapy (PAT program) dog, wears a trooper Halloween costume as he visits with hospital patients including 58-year-old Virginia Madrigal (L) at the Torrance Memorial Medical Center October 26, 2004 in Los Angeles, California. The PAT program began at the hospital in 1990 to bring specially-trained therapy dogs to patients’ bedsides twice each week. (Photo by David McNew/Getty Images)
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