In 1993, Nicholas Gonzalez, M.D. presented his best 25 cancer patient cases to the National Cancer Institute (NCI). This is Dr. Gonzalez's original presentation including the appropriate medical records confirming each diagnosis. The Gonzalez Protocol® is based on the enzyme treatment for cancer. At this early stage in his medical practice, Dr. Gonzalez was optimistic and believed that if he could prove that his protocol was effective for treating cancer, the NCI would support his nutritional cancer research. This presentation includes cases of breast cancer, endometrial cancer, adenoid cystic carcinoma, head and neck cancer, lung cancer, lymphoma, melanoma, ovarian cancer, pancreatic cancer, prostate cancer, renal cell carcinoma, sarcoma and thyroid cancer.