Patients ' perspectives on bone replacement materials in a German university hospital setting.

"Declarations Ethics approval and consent to participateThe present study did not collect any personal identification data, and therefore neither an ethics approval nor data protection concept were necessary. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding Open Access funding enabled and organized by Projekt DEAL. The authors acknowledge the support of the European Union (EU) Horizon 2020 project InterLynk (grant agreement: H2020-NMBP-TR-IND-2020, project ID: 953169) for the present work. HF is a participant in the BIH-Charité Clinician Scientist Programme funded by the Charité—Universitäts-Medizin Berlin and the Berlin Institute of Health."