one need look no further than Curezone's very own Rife forum for the most advanced use of frequency in healing. Seems like I have been hanging around CZ for probably about ten years, maybe a bit more or less, and have tried just about every protocol out there... sometimes with what seemed like sucess, other times harming myself (mms anyone). nothing comes close to what Newport has put together, referred to as "the doctrine", nothing (though he is too modest to tout it). more here:
anyone curious and with an open mind should check it out carefully. ask the people in the rife forum here. best part is, its free. for those like me who blew major $$$ and years of time playing with other protocols, healers, diets, cleanses etc, that alone was a welcome relief.