RT Journal Article SR Electronic T1 Random 2 dimensional ultrasonic evaluation of uterine cervix in pregnancy JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 269 OP 271 VO 27 IS 2 A1 Marchie, Tobechukwu T. A1 Otoibhi, Oisaremen E. A1 Ogbeide, Ehimwenma A1 Irabor, Pamela Faith I. A1 Ogoinja, Stanley Z. YR 2006 UL http://smj.org.sa/content/27/2/269.abstract AB