1. Department of Pharmaceutical Services, Children's Cancer Hospital Egypt, Cairo, 57357, Egypt
2. Department of Clinical Pharmacy, Saarland University, Campus C5 3, Saarbrücken, 66123, Germany
3. Epidemiology and Biostatistics Unit, Department of Clinical Research, Children's Cancer Hospital Egypt, Cairo, 57357, Egypt
4. Infectious Disease Unit, Children's Cancer Hospital Egypt, Cairo, 57357, Egypt
5. Department of Pediatric Oncology, National Cancer Institute, Cairo University, Cairo, Egypt
6. Personalized Medication Management Unit, Children's Cancer Hospital Egypt, Cairo, 57357, Egypt