Maghsoudlou, Siavash http://orcid.org/0000-0002-7721-9583
Cnattingius, Sven
Montgomery, Scott
Aarabi, Mohsen
Semnani, Shahriar
Wikström, Anna-Karin
Bahmanyar, Shahram
Funding for this research was provided by:
Karolinska Institutet
Article History
Received: 15 March 2017
Accepted: 24 August 2018
First Online: 1 October 2018
Ethics approval and consent to participate
: The study was a secondary analysis of data. Only anonymous aggregated data were analyzed and presented in the final results. Ethical committees of Golestan University of medical sciences, Iran (35/2633-p/g, 17 January 2011) and Karolinska Institutet, Sweden (2011/1657–31/3) approved the study prior to commencement.
: Not applicable.
: All authors declare that they have no competing interests.
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