Selecting multiple filter values here selects all datasets which contain at least one of the selected values.
For example, selecting cell types "hESC" and "iPSC" will show datasets containing at least one sample of
"hESC" OR "iPSC".
Platform type is simpler, as there is a one-to-one relationship with datasets rather than
many-to-one.
Remove all filters to show the original unfiltered dataset collection.