Sahutoglu, Tuncay http://orcid.org/0000-0003-2015-4421
Artim Esen, Bahar http://orcid.org/0000-0002-5659-3955
Aksoy, Murat http://orcid.org/0000-0002-9116-3985
Kurtoglu, Mehmet http://orcid.org/0000-0002-7042-4066
Poyanli, Arzu http://orcid.org/0000-0002-8851-1109
Gul, Ahmet http://orcid.org/0000-0001-8219-3720
Article History
Received: 29 January 2019
Accepted: 13 March 2019
First Online: 19 March 2019
Compliance with ethical standards
:
: AG received honoraria from Servier, AbbVie, MSD and Novartis and research grants from Xoma and Novartis. The author TS declares that he has no conflict of interest. The author BAE declares that she has no conflict of interest. The author MA declares that he has no conflict of interest. The author MK declares that he has no conflict of interest. The author AP declares that she has no conflict of interest.
: The Ethics Committee of Istanbul Faculty of Medicine approved the study protocol (2012/764–1063 on 27 April 2012) and allowed the retrospective analysis of available records of the patients followed up in the outpatient clinic between 1988 and 2011.
: All procedures performed in this study 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. The Ethics Committee of XYZ approved the study protocol (2012/764–1063 on 27 April 2012) and allowed the retrospective analysis of available records of the patients followed up in the outpatient clinic between 1988 and 2011. The Ethics Committee also consented to use the radiographic images without any identification if it is not possible to get permission from died patients or their next of kin. Patients gave written consent for being participated in the study and using their data and radiographic images. Next of kin of two died patients could not be traced, and their images were used without any identification with the approval of local ethics committee.