The same week, Dr. Rife's laboratory, with all his machinery and records, mysteriously burned down. Rife abandoned his research in fear of his life. For rheumatoid arthritis it is very effective, not as a cure but as a palliative agent. The pain just goes away for a few days then another treatment is necessary. Over time it appears that the effects last longer and longer.
Some patients appear to be cured completely.
With cancer patients the results have been ambiguous. I have seen tumors disappear within a few weeks of treatment. I have also seen zero results. There is much more research to be done. I have written software which turns your PC into a frequency generator.