This AbVideo provides instructions on maintaining CytoQuest? CR to avoid contaminations and ensure prolong usage. Abnova’s CytoQuest? CR is a non-invasive system for capture, enumeration, isolation and retrieval of circulating rare cells (CRCs), including circulating tumor cells (CTCs), circulating stem cells (CSCs), and circulating fetal cells (CFCs). Please visit Abnova website for more information.