Filter the dataset further by tumor-specific details, like the lateralization of
a patient's primary tumor, its location and/or T-category.
Next to the selected subsites and T-categories, this panel also displays how many
patients presented with a tumor in the respective subsite / T-category.
Note: Both the subsites and T-categories are selected or deselected by clicking on
the respective button. If it appears white on dark blue,
it is selected. If it appears dark blue on light blue,
it is deselected. For example, selecting 'T1' and 'T2' and 'Tonsil' will select
all patients that have primary tumors located in the tonsil AND are T1 OR T2-category,
i.e. different criteria are combined via AND operations whereas T-categories
are connected via OR operations.