#736 added support for annotating slides with an IHC annotation.
For specimens on stained slides that are flagged as IHC a quality annotation is needed. The annotation can be of enumeration type with available values:
fail or missing value
NULL. The annotation can be used for all IHC irrespective of IHC-stain, e.g., p63 or any future stain.
In the histology scoring wizard the IHC-quality value could be set for samples byt clicking the stained specimen on the IHC slide (perhaps clicking the microscope icon). Selection through drop-down or perhaps just toggle between