Cell Therapy : Cell Therapy also called as cellular therapy. It is a process where cellular material is injected into a patient. Cell therapy is of 2 categories: call therapy in mainstream medicine and alternative medicine. Mainstream medicine is classified as: allergenic cell therapy, human embryonic stem cells, neural stem cell therapy, mesenchymal stem cell therapy, hematopoietic stem cell transplantation. Alternative cell therapy is defined as injecting non-human cellular animal material to treat illness.