Text and Data Mining valid from 2018-03-17
First Online: 17 March 2018
Compliance with ethical standards
: Elliot K. Fishman is a cofounder of HipGraphics and receives institutional Grant support from Siemens Healthcare and GE Healthcare. Linda C. Chu declares that she has no conflict of interest. Pamela T. Johnson declares that she has no conflict of interest.
: This study was in accordance with the ethical standards of the institution and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was waived by the institutional review board for the retrospective study.