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. 2011 Jul 27;6(7):e21554. doi: 10.1371/journal.pone.0021554

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Wang et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Shown are the original surface (top left), the surface after alignment to the -axis (top middle), and reconstructions using spherical harmonics of order up to 1 (top right), 3 (bottom left), 6 (bottom middle), and 9 (bottom right).

Inline graphic — Shown are the original surface (top left), the surface after alignment to the -axis (top middle), and reconstructions using spherical harmonics of order up to 1 (top right), 3 (bottom left), 6 (bottom middle), and 9 (bottom right).