1.
Langenfeld A, Gassner AP, Wirth B, Mühlemann MB, Nyirö L, Bastiaenen C, Swanenburg J. Responsiveness of the German version of the Neck Disability Index in chronic neck pain patients: a prospective cohort study with a seven‑week follow‑up. Arch. Physioter [Internet]. 2022 Oct. 17 [cited 2024 Dec. 22];12(1). Available from: https://journals.aboutscience.eu/index.php/aop/article/view/2803