Active Specific Immunotherapy Phase III Trials for Malignant Melanoma: Systematic Analysis and Critical Appraisal

This invention relates to the cytology of blood, bone marrow, and lymph node cells, and to the composition and method of differentiating, identifying, and enumerating said cells among a plurality of cells of hematopoietic origin. More specifically, the invention is directed to the use of basis cationic diazo dyes capable of staining a plurality of cells of hematopoietic origin to differentiate and enumerate the abnormal from the normal cells. The stained cells obtained by this invention have individual color characteristics which permit the identification and differentiation by use of various optical instruments, including, for example, an image analyzer, microscope, photomicroscope and the like.