Google Health - arrived?

Been doing some work around google health and yesterday I searched for 'tonsillitis' and got the image on the left, this didn't work in Canada! Just did a search for 'prostate cancer' and got the second image - note the refine function. Interestingly, or perhaps disappointingly, it didn't give the same results with 'prostatic carcinoma' - perhaps synonyms will be plugged later.

Although is this google health? Wouldn't that be stand alone like google finance - something like http://health.google.com?

One of the refine functions is 'For health-professionals' which when clicked gives the following search syntax 'more:for_health_professionals'. Alas, for tonsillitis the first page of results are for patient information sites! For prostate cancer it did slightly better - but not hugely!