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Saemundsen AK, Berkel AI, Henle W, Henle G, Anvret M, Sanal O, Ersoy F, Cağlar M, Klein G.Saemundsen AK, et al. Among authors: berkel ai.Br Med J (Clin Res Ed). 1981 Feb 7;282(6262):425-7. doi: 10.1136/bmj.282.6262.425.Br Med J (Clin Res Ed). 1981.PMID: 6257325Free PMC article.