1. Pediatric Emergency Unit, and
2. Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel;
3. Pediatric Ambulatory Center, Clalit Health Services, Ramla, Israel;
4. Clalit Health Services, Ramla, Israel;
5. Merck Sharp & Dohme (MSD) Company, Petah Tikva, Israel; and
6. Pediatric Ambulatory Center, Clalit Health Services, Petah Tikva, Israel
7. Clinical Pharmacology and Toxicology Unit, Assaf Harofeh Medical Center, Zerifin, Israel;