1Academic Division of Child Health, Medical School in Derby, University of Nottingham, Royal Derby Hospital, Uttoxeter Road, Derby DE22 3DT, United Kingdom
2Department of Pharmacology, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria
3Department of Pharmacology, College of Medicine, University of Lagos, Idiaraba, Lagos, Nigeria
4APIN Clinic, Lagos University Teaching Hospital, Lagos, Nigeria
5Department of Paediatrics, College of Medicine, University of Lagos, Idiaraba, Lagos, Nigeria
6Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Idiaraba, Lagos, Nigeria