Text and Data Mining valid from 2019-03-15
Received: 1 January 2019
Accepted: 5 March 2019
First Online: 15 March 2019
Compliance with ethical standards
: Rajesh Raj Bajpai, Shirin Razdan, Marcos A. Sanchez-Gonzalez and Sanjay Razdan declare that they have no conflict of interest.
: Ethical approval from the hospital review board was taken prior to initiation of the study.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual patients pre-operatively for use of non-identifiable data for research purposes.