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1by Sigfusson, N, Sigvaldason, H, Steingrimsdottir, L, Gudmundsdottir, I I, Stefansdottir, I, Thorsteinsson, T, Sigurdsson, GGet access
Published in BMJ (2011)
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4by Sigfusson, N, Sigvaldason, H, Steingrimsdottir, L, Gudmundsdottir, I I, Stefansdottir, I, Thorsteinsson, T, Sigurdsson, GGet access
Published in BMJ (1991)
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Article in Journal/Newspaper