Noori, M.A. and Shihab, O.I. 2009. Birth Prevalence of Cleft lip and/or Palate in Hawler City A retrospective Hospital based One year Study. Zanco Journal of Medical Sciences (Zanco J Med Sci). 13, 2 (Aug. 2009), 69–72. DOI:https://doi.org/10.15218/zjms.2009.022.