The authors must declare any conflict of interests of contributed authors very briefly in a separate paragraph at the end of the paper. All sources of funding should be declared; unless otherwise the following sentence should be given “Authors declare no conflict of interests”.

Authors are required to specify the source of funding for their research when submitting a paper. Suppliers of materials should be named and their location included. The information will be disclosed in the Acknowledgements section of the published article.

Authors should acknowledge any scientific, technical, statistical and financial supports. Contributors other than coauthors may be very briefly acknowledged in a separate paragraph at the end of the paper. All sources of funding should be declared. 

Please download the ICMJE Conflict of Interest form, fill it out and save it to your computer.This form should be made available to the Editor on request.