Biomedical data integration and processing is a very sensitive issue and a main barrier for research, since it normally implies dealing with private clinical information. To overcome this problem, we propose a solution based on multiple levels of data visibility, combined with a fine-grained access control over the shared data. Through our proposal, on one hand, data custodians can decide the level of detail at which they want to share data, in a flexible manner that can be adjusted along the time. On the other hand, adequate permissions are provided to the users that want to access the data, according to their role and research plan.
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