1. Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
2. Department of Women's and Children’s Health, International Maternal and Child Health, Uppsala University, Uppsala, Sweden
3. Kinondo Kwetu Health Services Clinic, Kinondo, Kenya
4. Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden
5. Helsinki University Central Hospital Laboratory (HUSLAB), HUS Diagnostic Center, Helsinki and Uusimaa Hospital District, Helsinki, Finland