Funding for this research was provided by:
Bundesministerium für Gesundheit (GE20160358)
Received: 31 July 2019
Accepted: 28 January 2020
First Online: 6 February 2020
Ethics approval and consent to participate
: The “Disease knowledge and information needs – Diabetes mellitus (2017)” survey was approved by the ethics committee of the Berlin Chamber of Physicians in August 2017 (Ärztekammer Berlin; No. Eth-23/17) and the Federal Commissioner for Data Protection and Freedom of Information. Participants of this survey verbally gave informed consent at the beginning of the telephone interview after they were informed about the objectives of the survey, the voluntariness of participation, and procedures of data protection.
: Not applicable.
: The authors declare that they have no competing interests.