Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
An example application of the spatial point process model to the example slices used in Figs. 1, 2, 3 where approximate cluster boundaries are marked by the green ellipsoids. ACS average cluster size.