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Original research
Hospital diagnosed pneumonia before age 20 years and multiple sclerosis risk

Authors

  • Kelsi A Smith Department of Medicine Solna, Karolinska Institutet, Stockholm, SwedenInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden PubMed articlesGoogle scholar articles
  • Ayako Hiyoshi Clinical Epidemiology and Biostatistics, Örebro Universitet—Campus USÖ, Orebro, SwedenDepartment of Public Health Sciences, Stockholm University, Stockholm, Sweden PubMed articlesGoogle scholar articles
  • Sarah Burkill Centre for Pharmacoepidemiology, Karolinska Institutet, Stockholm, SwedenSaw Swee Hock School of Public Health, National University of Singapore, Singapore PubMed articlesGoogle scholar articles
  • Shahram Bahmanyar Centre for Pharmacoepidemiology, Karolinska Institutet, Stockholm, SwedenCentre for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden PubMed articlesGoogle scholar articles
  • Johan Öckinger Department of Medicine Solna, Karolinska Institutet, Stockholm, SwedenCentre for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden PubMed articlesGoogle scholar articles
  • Lars Alfredsson Institute of Environmental Medicine, Karolinska Institutet, Stockholm, SwedenCentre for Occupational and Environmental Medicine, Stockholm, Sweden PubMed articlesGoogle scholar articles
  • Tomas Olsson Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden PubMed articlesGoogle scholar articles
  • Scott Montgomery Department of Medicine Solna, Karolinska Institutet, Stockholm, SwedenClinical Epidemiology and Biostatistics, Örebro Universitet—Campus USÖ, Orebro, Sweden PubMed articlesGoogle scholar articles
  1. Correspondence to Ms Kelsi A Smith; kelsi.smith{at}ki.se
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Citation

Smith KA, Hiyoshi A, Burkill S, et al
Hospital diagnosed pneumonia before age 20 years and multiple sclerosis risk
BMJ Neurology Open 2020;2:e000044. doi: 10.1136/bmjno-2020-000044

Publication history

  • Received January 15, 2020
  • Revision received March 27, 2020
  • Accepted May 10, 2020
  • First published June 16, 2020.
Online issue publication 
August 14, 2020

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Copyright information

© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. http://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.