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Christ-Crain M, Stoeckli R, Ernst A, Morgenthaler NG, Bilz S, Korbonits M, Struck J, Bergmann A, Müller B, Keller U.Christ-Crain M, et al. Among authors: keller u.J Clin Endocrinol Metab. 2006 Sep;91(9):3544-7. doi: 10.1210/jc.2006-0256. Epub 2006 Jun 20.J Clin Endocrinol Metab. 2006.PMID: 16787986