PREVALENCE AND ASSOCIATED SOCIO-DEMOGRAPHIC VARIABLES OF POST-TRAUMATIC STRESS DISORDER AMONG PATIENTS ATTENDING PRIMARY HEALTH CARE CENTRES IN THE GAZA STRIP / AFANA, Abdel-Hamid ; DALGARD, Odd Steffen ; BJERTNESS, Espen ; GRUNFELD, Berthold ; HAUFF, Edvard .- Oxford: Oxford University Press ; Refugee Studies Centre , 2002 .- 1vol; 12pp; 23cms .- ISSN 0951-6328.-