1. Jöns Jacob Berzelius – A Father of Chemistry
Robert A. Kyle, MD, David P. Steensma, MD 
Mayo Clinic Proceedings 
Volume 93, Issue 5, Pages e53-e54 (May 2018)
DOI: /j.mayocp
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2. Mayo Clinic Proceedings 2018 93, e53-e54DOI: (10. 1016/j. mayocp. 2017
Copyright © 2018 Mayo Foundation for Medical Education and Research Terms and Conditions

3. Mayo Clinic Proceedings 2018 93, e53-e54DOI: (10. 1016/j. mayocp. 2017
Copyright © 2018 Mayo Foundation for Medical Education and Research Terms and Conditions

4. Mayo Clinic Proceedings 2018 93, e53-e54DOI: (10. 1016/j. mayocp. 2017
Copyright © 2018 Mayo Foundation for Medical Education and Research Terms and Conditions