Article History
Received: 16 January 2020
Revised: 30 January 2020
Accepted: 11 February 2020
First Online: 19 February 2020
Compliance with ethical standards
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: MJC has received funding from the Wellcome Trust and University College London Hospital (UCLH) Charity. MW: None. HUA reports receipt of grant funding and personal fees from SonaCare Medical Inc, grant funding from Trod Medical, and grant funding and personal fees from Sophiris Bio Inc. HUA also receives core funding from the UK National Institute of Health Research Imperial Biomedical Research Centre and grants from Wellcome Trust, MRC (UK), Cancer Research UK, Prostate Cancer UK, The Urology Foundation, BMA Foundation and Imperial Healthcare Charity.