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Article History

Received: 13 April 2020

Accepted: 3 August 2020

First Online: 16 August 2020

Ethics approval and consent to participate

: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional review board of the Albert Schweitzer hospital and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors. This study is part of a large cooperative anemia project in collaboration with referring general practices, which was approved by the ethics committee of our hospital. The participating GPs in the anemia project had to inform their patients verbally of the participation of the GP practice in this care improvement project. This method was approved by the institutional review board of the Albert Schweitzer hospital.

: Consent for publication is not required.

: Author A. Schop declares that she has no conflict of interest. Author K. Stouten declares that she has no conflict of interest. Author J.A. Riedl declares that he has no conflict of interest. Author R.J. van Houten declares that he has no conflict of interest. Author M.J.G. Leening declares that he has no conflict of interest. Author J. van Rosmalen declares that he has no conflict of interest. Author P.J.E. Bindels declares that he has no conflict of interest. Author M-D. Levin declares that he has no conflict of interest.