1. Gertrude’s Children’s Hospital, P.O. Box 42325, Nairobi 00100, Kenya
2. Gertrude’s Hospital Foundation, Gertrude’s Children’s Hospital, P.O. Box 42325, Nairobi 00100, Kenya
3. Department of Paediatrics and Child Health, University of Nairobi, P.O. Box 460, Nairobi 00202, Kenya
4. Department of Paediatrics and Child Health, Aga Khan University, P.O. Box 30270, Nairobi 00100, Kenya
5. Institute of Child Health and Research, Gertrude’s Children’s Hospital, P.O. Box 42325, Nairobi 00100, Kenya