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1. Searching for Studies (Tab 1 and Tab 2)
   With Medical Record Numbers (MRNs) or Accession Numbers (NAs), users can search, refine, and select the studies that interest them them most. mi2b2:mi2b2 User Documentation - Searching for and Requesting DICOM Studies
2. Requesting and Downloading Studies (Tab 3)
   Once a set of studies has been identified, users can request mi2b2 server to acquire them from the connected PACS. These studies will be copied into the mi2b2 server cache, ready for users to download the studies onto their own machines. mi2b2:mi2b2 User Documentation - Downloading Studies
3. Viewing and Managing Studies (Tab 4)
   Once the studies have been downloaded onto users' machines, users can use mi2b2's to quickly examine the images. While the image viewer in mi2b2 is not designed for medical diagnostic purposes, it does provide rudimentary image controls, allowing users to decide if the images are what they want. mi2b2:mi2b2 User Documentation - Viewing and Managing Studies
4. Managing Remote Cache (Tab 5)
   Users can interact with the cache on a mi2b2 server by deleting unnecessary studies to free up cache space, or download selected studies. mi2b2:mi2b2 User Documentation - Managing Remote Cache

This video demonstrates how users can perform these basic tasks. Detailed description and nuances can be obtained via the links provided.