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Kaler M, Shakur R, Learner HI, Deaner A, Howard RJ.Kaler M, et al. Among authors: learner hi.Obstet Med. 2013 Mar;6(1):35-37. doi: 10.1258/OM.2012.120035. Epub 2013 Mar 1.Obstet Med. 2013.PMID: 27757152Free PMC article.