Received: 21 January 2019
Revised: 5 January 2020
Accepted: 25 June 2020
First Online: 15 July 2020
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: ARL received consultancy fees from Celladon Corporation. RJH held stock options in Celladon Corporation. JJR and KMZ were employees of Celladon Corporation and held stock options. The other authors do not report any relevant disclosures.