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Alzheimer's — a correction

1992; Nature Portfolio; Volume: 356; Issue: 6368 Linguagem: Inglês

10.1038/356390b0

1476-4687

Fiona Crawford, Marie‐Christine Chartier‐Harlin, Michael Mullan, John Hardy, André Delacourte, GENEVIEVE ARNOTT,

Cholinesterase and Neurodegenerative Diseases

to make them all the same length .This tends to mask inequalities in rates of substitution along the different branches.More subtly, to keep all the horizontal branches parallel, it is necessary to introduce vertical lines of various lengths.These lines, which correspond to no feature of the data, impart an artificial air of organization to the tree -the bushier the main branches of the tree , Starburst plot of the data of Cann et a/. 1 .a , Position of the lone African bushman in the sample; b , the anomalous Asian members of the 'African' branch; c, position of an Australian aboriginal near the same branch.Note another aboriginal at the base of the branch.Black circles, African ancestry;