- Andreas Gerber-Grote: Head of Department Health Economics, Institute for Quality and Efficiency in Health Care (IQWiG), Im Mediapark 8, D-50670 Koeln, Germany. Electronic address: andreas.gerber-grote@iqwig.de.
- J��rgen Windeler: Director of Institute for Quality and Efficiency in Health Care (IQWiG), Im Mediapark 8, D-50670 Koeln, Germany. Electronic address: susanne.wozniak@iqwig.de.