One study followed 89 patients with PD who were treated with unilateral subthalamotomy. Sixty-eight patients were available for evaluations after 12 months, 36 after 24 months and 25 patients after 36 months.
Definition of alpaca for English Language Learners. : 1  a South American animal that is related to the llama and has long woolly hair. : 2  wool of the alpaca or a cloth made of it.
Two Breeds. Alpacas might be Suri or Huacaya breeds, with Huacaya being by far the most prevalentâabout 90 percent of the alpacas in the United States and up to 98 percent worldwide are Huacaya. Both breeds are about the same size and live in the same environments.