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Sorry, the year was incorrect.<br><br>
<blockquote type=cite class=cite cite="">The various justifications of
the number of projections, and the issues of 3D resolution, are covered
extensively in my book, new edition: J. Frank, Three-dimensional Electron
Microscopy of Macromolecular Assemblies, Oxford U Press
<b>2006</b>.<br><br>
--Joachim Frank<br>
Joachim Frank, Ph.D.<br>
Howard Hughes Medical Institute,<br>
Wadsworth Center,<br>
Empire State Plaza,<br>
Albany, New York 12201-0509<br>
phone: 518 474-7002<br>
fax:&nbsp; 518 486-2191</blockquote></body>
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