by Al-Tikriti, S K, Al-Ani, F, Jurji, F J, Tantawi, H, Al-Moslih, M, Al-Janabi, N, Mahmud, M I, Al-Bana, A, Habib, H, Al-Munthri, H, Al-Janabi, S, AL-Jawahry, K, Yonan, M, Hassan, F, Simpson, D I
Published in Bulletin of the World Health Organization (1981)