1. From the Department of Pediatrics, King Abdulaziz University Hospital, College of Medicine, King Saud University, Riyadh, Saudi Arabia
2. Correspondence: Abdulaziz M. Al-Rashed MD · Department of Pediatrics, PO Box 245, Riyadh 11411, King Abdulaziz University Hospital, Riyadh, Kingdom of Saudi Arabia · drarrashed@hotmail.com · Accepted: August 2010