Immunofluorescence is a unique immunochemical method that combines the ability to conduct a detailed morphological analysis and use the specificity of the immunological reaction. The advantage of the immunofluorescence method is its high sensitivity and resolution. The immunofluorescence method was used to survey cell films of venous blood filtrate of cancer patients, and with usage of an apparatus for blood micro-screening, the successful extraction of circulating cancer cells was confirmed.
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