I have found this:
http://www.hertsparts.nhs.uk/Categor...t.asp?cat=1284
http://www.hertsparts.nhs.uk/Content...F9D75&cat=1284
You can Google the individual wards and you should be able to find more information. That's what my parents did with Shamrock Unit and Aquarius Ward before I went to those.
Best of wishes,
SM