Chandler, Rebecca Ellen
Edwards, I. Ralph
Lindquist, Marie
Article History
First Online: 23 March 2018
Compliance with Ethical Standards
:
: No sources of funding were used in the preparation of this letter.
: Rebecca Chandler, I Ralph Edwards, and Marie Lindquist have no conflicts of interest that are directly relevant to the content of this letter.
: The opinions expressed in this comment/letter to the editor are those of the authors and are not necessarily those of the World Health Organization (WHO) or the national centers that are members in the WHO Programme for International Drug Monitoring.