Funding for this research was provided by:
International Federation of Clinical Chemistry
Text and Data Mining valid from 2019-06-28
Received: 9 November 2017
Accepted: 22 March 2019
First Online: 28 June 2019
Ethics approval and consent to participate
: All participants gave written informed consent and had consented to use of their archived specimens for cohort sub studies. The study protocol was approved by the Joint Research Ethics Committee (JREC) for the University of Zimbabwe College Health Sciences and the Parirenyatwa Group of Hospitals: JREC 13/16. Ethical approval was also obtained from the Medical Research Council of Zimbabwe (MRCZ), approval MRCZ /B/1117. Shipment of biospecimens from Harare to Johannesburg was approved by the Research Council of Zimbabwe (RCZ), research registration certificate 02871.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.