With the addition of the clinical diagnosis, it is easy to make a mistake (it is easy to mix them up with diseases)
Clinical diagnosis also needs to have options "all" and "at least one of the selected diseases" (not an issue, already done in PT-1986)
There are way too many "empty means no constraint"
No need for such wide fields
Currently the filtering form looks way too busy. When you are in the middle of the form one can not easily determine if the field labels are above or below them.
Rename "by disease" to "by final diagnosis"