1. Department of Clinical Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt (A.M.A., S.M.S., R.E.B., N.A.S.).
2. Charité – Universitätsmedizin Berlin, Institute of Clinical Pharmacology and Toxicology, Berlin, Germany (A.M.A., R.K.).
3. Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt (I.E.H.).