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Hansen-Pupp I, Engström E, Niklasson A, Berg AC, Fellman V, Löfqvist C, Hellström A, Ley D.Hansen-Pupp I, et al. Among authors: fellman v.J Clin Endocrinol Metab. 2009 Feb;94(2):477-82. doi: 10.1210/jc.2008-1293. Epub 2008 Nov 11.J Clin Endocrinol Metab. 2009.PMID: 19001522Clinical Trial.