Reflexology areas on the foot correspond to areas of the body, and that by manipulating these one can improve health through one's qi. Reflexologists divide the body into ten equal vertical zones, five on the right and five on the left. Concerns have been raised by medical professionals that treating potentially serious illnesses with reflexology, which has no proven efficacy, could delay the seeking of appropriate medical treatment. Reflexologists posit that the blockage of an energy field, invisible life force, or Qi, can prevent healing. Another tenet of reflexology is the belief that practitioners can relieve stress and pain in other
Intraoperative electron radiation therapy are improving patient care by delivering intraoperative radiation electron beam therapy to cancer patients during surgery. All three units are compact and mobile. Invented in the U.S. in 1997, the Mobetron uses X-band technology and a soft docking system. The LIAC and NOVAC-7 are robotic devices developed in Italy that use S-band technology and a hard-docking system. The NOVAC-7 became available for clinical use in the 1990s while the LIAC was introduced to a clinical environment in 2003. Other non-IOERT mobile units have been developed as well. In 1998, a technique called TARGIT (targeted intraoperative radio therapy) was designed at