RT Journal Article SR Electronic T1 Prevalence of Helicobacter pylori and parasites in symptomatic children examined for Helicobacter pylori antibodies, antigens, and parasites in Yemen JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 126 OP 127 DO 10.15537/smj.2015.1.10871 VO 36 IS 1 A1 Al-Mendalawi, Mahmood D. YR 2015 UL http://smj.org.sa/content/36/1/126.abstract AB