Ethics
Informed Consent: All subjects in the study gave written informed consent or the institutional review board waived the need to obtain informed consent.
Peer-review: Externally and internally peer-reviewed.
Authorship Contributions
Surgical and Medical Practices: W.M., M.P., C.R., S.P., Concept: W.M., M.P., C.R., S.P., Design: W.M., M.P., C.R., S.P., Data Collection or Processing: W.M., M.P., C.R., S.P., Analysis or Interpretation: W.M., M.P., C.R., S.P., Literature Search: W.M., M.P., C.R., S.P., Writing: W.M., M.P., C.R., S.P.
Conflict of Interest: William Makis, Mark Palayew, Christopher Rush and Stephan Probst declare that they have no conflicts of interest.
Financial Disclosure: The authors declare that this study has received no financial support.