1. A system for producing structured clinical information from patient records, the system comprising: a memory configured to store a patient record having patient information including unstructured data and structured data; a probabilistic data miner of a computer platform configured to (a) mine the structured and unstructured information for multiple pieces of data related to a variable for the patient, (b) combine the multiple pieces of data related to the variable into a value of the variable for the patient, the value being a function of the multiple pieces of data related to the variable, and (c) repeat (a) and (b) for a plurality of different variables of the same patient to find values for the variables representing the patient at a same time, the multiple pieces of data for one variable of the different variables being different than the multiple pieces of data for another one of the different variables; wherein one or both of (a) and (b) are performed as a function of domain-specific criteria.