Kaynak, Mustafa
Nijman, Frank
van Meurs, Joyce
Reijman, Max
Meuffels, Duncan E.
Article History
First Online: 17 January 2018
Compliance with Ethical Standards
:
: No sources of funding were used to assist in the preparation of this letter.
: Mustafa Kaynak, Frank Nijman, Joyce van Meurs, Max Reijman and Duncan Meuffels have no conflicts of interest relevant to the content of this letter.