APA (7th ed.) Citation

Sigfrid, K., Fackle-Fornius, E., & Miller, F. (2026). Optimized questionnaire item selection for tracking the progression of motor symptoms in Parkinson's disease.

Chicago Style (17th ed.) Citation

Sigfrid, Karl, Ellinor Fackle-Fornius, and Frank Miller. Optimized Questionnaire Item Selection for Tracking the Progression of Motor Symptoms in Parkinson's Disease. 2026.

MLA (9th ed.) Citation

Sigfrid, Karl, et al. Optimized Questionnaire Item Selection for Tracking the Progression of Motor Symptoms in Parkinson's Disease. 2026.