Received: 4 October 2017
Accepted: 22 January 2018
First Online: 30 January 2018
: Verbal informed consent for prospective data collection was obtained from all participants at the first injection visit by the treating clinician. The study was given ethical approval, granted a waiver of documentation of informed consent for retrospective analysis and approved for verbal consent with regard to prospective follow-up by the NHS Lothian research ethics committee with approval number 09/S1101/05. All procedures adhered to the tenets of the Declaration of Helsinki.
: Not applicable
: Commercial relationship – FE (Recipient), SB (Recipient) and PC (Recipient) Bayer UK Ltd. The sponsor had no role in the design or conduct of this research. PA, PS, CL, AA, BD and PC have no competing interests to report.
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