Received: 22 July 2020
Accepted: 2 September 2020
First Online: 28 September 2020
Ethics approval and consent to participate
: This work was approved by the Institutional Review Board of Stanford University.
: The patient in Case 1 provided written informed consent for publication. The patient in Case 2 is deceased and informed consent was waived.
: The authors declare that they have no competing interests.