Funding for this research was provided by:
Received: 22 November 2017
Accepted: 17 September 2018
First Online: 21 September 2018
Consent for publication
: Not applicable.
: MT, MB, TP, AS and EP were all employees of Sanofi Pasteur at the time of the study. MB holds stocks in Sanofi Pasteur. JK and WD have no conflicts of interest to declare.
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