Text and Data Mining valid from 2020-02-12
Received: 19 June 2019
Accepted: 18 January 2020
First Online: 12 February 2020
Change Date: 3 April 2020
Change Type: Correction
Change Details: This article was published with incomplete Table 4. The Equivalent scores were missing during the submission. The correct Table is presented here.
Compliance with ethical standards
: The study has been designed according to the ethical standards of the Declaration of Helsinki (British Medical Journal, 302: 1194, 1991), and approved by the local ethical committee.
: The authors declare that they have no conflict of interest.