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.
Unlike the llama, the fiber of the alpaca can be used for clothing. Alpaca fiber is softer than cashmere or angora, and warmer and lighter weight than wool, without the prickle-factor that some wool has. Since alpaca fleece has no lanolin, it is easier to process and is hypoallerginic.: Size and fiber quality. Llamas were primarily bred to be beasts of burden, and alpacas were bred primarily as fiber producers. An average alpaca stands 34-36 at the withers (shoulders), whereas a llama stands 42-48 at the withers.