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Autism spectrum disorders and fetal hypoxia in a population-based cohort: Accounting for missing exposures via Estimation-Maximization algorithm

Igor Burstyn*, Xiaoming Wang, Yutaka Yasui, Fortune Sithole and Lonnie Zwaigenbaum

BMC Medical Research Methodology 2011, 11:2  doi:10.1186/1471-2288-11-2

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