academic article

• The Penn Parkinson's Daily Activities Questionnaire-15: Psychometric properties of a brief assessment of cognitive instrumental activities of daily living in Parkinson's disease..  Parkinsonism & related disorders.  21-6. 2016
• Development and initial testing of the Penn Parkinson's Daily Activities Questionnaire..  Movement disorders : official journal of the Movement Disorder Society.  31:126-34. 2015