1. As suggested by the booklet Aids, Equipment and Suggestions to Help the Patient With Parkinson’s Disease in the Activities of Daily Living, published by the American Parkinson Disease Association.

미국 파킨슨병 협회에서 발행한 소책자 「파킨슨병 환자의 일상 생활 활동에 도움이 되는 보조물, 장비, 제안」(Aids, Equipment and Suggestions to Help the Patient With Parkinson’s Disease in the Activities of Daily Living)에서 제안된 것임.