Statistics from Altmetric.com
Handling editor Josef S Smolen
Contributors MA and JV designed the study. KL, VSH, RA and MC collected the data. RA and VSH analysed the data. MA and KL conducted statistical analyses. KL, MA and JV interpreted the data and wrote manuscript. All authors reviewed the manuscript and approved final version.
Funding This study was supported by Slovenian research agency (Z3-9261 to KL) and the Commonwealth Foundation Iniative at Johns Hopkins (to MA).
Competing interests None declared.
Patient consent for publication Obtained.
Ethics approval The study was approved by Northwestern University and Johns Hopkins Medicine Institutional Review Boards.
Provenance and peer review Not commissioned; externally peer reviewed.
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