Volume 4-Issue 3-4-1997 Hepatitis A from unsafe water Survey on infection control in MOH dental clinics, Riyadh Doctors' knowledge of and attitudes toward NIDs for oral poliovirus vaccine in Riyadh, 1997 Cutaneous leishmaniasis control in Al Hasa region, 1989-1996 Salmonella poisoning and chicken shawarmas, Western Riyadh, June 1997