Contents Issue 2 April 2005 Volume 12, Issue 2 , 2005 View pdf Knowledge of health workers at a Riyadh hospital of health care waste management Majed Abdulaziz Almohaimeed, Randa Nooh Knowledge and attitude of health workers about GIS and its application in malaria control Haleemah Ali Ibraheem Al-johar, Abdullah Mohammed Al-Rabeah, Nasser Alhamdan To the Editor (Dr. AbdulRauf Ghulam, Vaccination Dept PHCC, Qateef - Hashim Abu Alrahi Head of department of preventive medicine, PHC, Qateef)