Ali Nafi, O. and Shaheen, A.M. 2013. MATERNAL AGE AND CONSANGUINITY AS RISK FACTORS FOR MENTAL RETARDATION AMONG CHILDREN IN SOUTH JORDAN. European Scientific Journal, ESJ. 9, 8 (Mar. 2013). DOI:https://doi.org/10.19044/esj.2013.v9n8p%p.