A study of 101 patients who had IWL showed that the probability of having cancer was unlikely when the evaluation had normal testing including physical examination, complete blood count, C-reactive protein (CRP), aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), albumin, ferritin, chest radiography, and abdominal ultrasound; all 22 patients who had cancer had at least one abnormal laboratory test [4]. This evidence concerns the gene GPT and cancer.