10 Diagnostic apparatus for the detection of cancer; Medical diagnostic apparatus for testing DNA and RNA samples; Medical diagnostic apparatus for detecting cancer; Medical diagnostic apparatus for testing volatile organic compounds relating to cancer, virus, pathogenic entities, metabolic diseases, autoimmune diseases; Medical diagnostic apparatus for testing volatile organic compounds relating to cancer, virus, pathogenic entities, metabolic diseases, autoimmune diseases incorporating recorded operating system software; Medical diagnostic apparatus for testing volatile organic compounds relating to cancer, virus, pathogenic entities, metabolic diseases, autoimmune diseases incorporating recorded software for comparing a sample's data set to a library of datasets associated with a disease