Funding for this research was provided by:
National Iranian Offshore Oil Company (1-90-4386)
Text and Data Mining valid from 2019-01-21
Received: 2 September 2017
Revised: 31 October 2018
Accepted: 31 December 2018
First Online: 21 January 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.