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.
Alpacas (Vicugna pacos) Alpacas are closely related to llamas, however they are considerably smaller. The alpaca was domesticated for its very fine fibre, which, unlike sheep's wool is shiny, hairlike and does not contain any lanolin. This fibre is spun into yarn, while llamas were domesticated as beasts of burden.