Physionet - a VPH resource
'PHysioNet' atstarted a dozen years ago as a database for electrocardiographic time series but has evolved to store data on ICU (intensive care units) and imaging data. There are lots of tools available there. There is also about 35000 ICU records, about 3500 of which are carefully curated and annotated with physicians and nurses notes, and have been deidentified.