RT Journal Article SR Electronic T1 Protozoa infection and its associated factors among urban babies 6 to 24 months age, in Semnan, Iran. JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 299 OP 301 VO 28 IS 2 A1 Raheb Ghorbani A1 Seyed M. Sadat-Hashemi A1 Ramin Pazooki YR 2007 UL http://smj.org.sa/content/28/2/299.abstract AB