Text and Data Mining valid from 2019-04-13
Received: 1 January 2019
Accepted: 2 April 2019
First Online: 13 April 2019
Compliance with ethical standards
: The authors declare that they have no conflicts of interest.
: This study was conducted in accordance with the principles of the Declaration of Helsinki and in compliance with the International Conference on Harmonization-Good Clinical Practice and local regulatory requirements. The study was reviewed and approved by the appropriate Independent Ethics Committees, and written informed consent was obtained from all subjects prior to study initiation.