1. King Saud bin Abdulaziz University for Health Sciences (KSAU-HS)/King Abdullah International Medical Research Center (KAIMRC)/King Abdulaziz Medical City (KAMC), Ministry of National Guard - Health Affairs; Riyadh Saudi Arabia
2. King Faisal Specialist Hospital and Research Centre; Jeddah Saudi Arabia
3. King Fahad General Hospital; Jeddah Saudi Arabia
4. Medical Records Department; Ministry of Health; Jeddah Saudi Arabia
5. King Saud University; Riyadh Saudi Arabia