Text and Data Mining valid from 2019-01-14
Received: 31 October 2018
Accepted: 14 December 2018
First Online: 14 January 2019
Compliance with ethical standards
: This study was the work of the authors without funding.
: James B. Yu has received a research gift from twenty-first Century Oncology. He has received consulting fees from Augmenix Inc. All the other authors report no conflicts of interest.
: All procedures performed were in accordance with the ethical standards of the Yale HIC and with the 1964 Helsinki declaration on a Yale Human Investigational Committee (HIC) approved study (HIC# 1306012291).
: Informed consent was obtained from all individual participants included in the study.