1. Child Health and Development Centre; Makerere University College of Health Sciences; Kampala Uganda
2. Department of Paediatrics and Child Health; Makerere University College of Health Sciences; Kampala Uganda
3. Ryan White Centre for Paediatric Infectious Disease and Global Health; Indiana University School of Medicine; Indianapolis Indiana USA
4. Department of Pathology (Transfusion); Harvard University/Massachusetts General Hospital; Boston Massachusetts USA
5. Department of Global Child Health, Emma Children's Hospital; Academic Medical Centre, University of Amsterdam; Amsterdam The Netherlands