Funding for this research was provided by:
Research to Prevent Blindness
Received: 8 July 2018
Accepted: 10 February 2019
First Online: 26 February 2019
Ethics approval and consent to participate
: This non-exempt medical records review research project was approved by the University of Wisconsin-Madison Minimal Risk IRB within the Health Sciences IRBs office (FWA00005399). The current study followed the tenets of the Declaration of Helsinki. All figures and tests are de-identified thus no consent to participate was required.
: Not applicable.
: The authors declare that they have no competing interests.
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