My 19 year old son was diagnose with Osteogenic type II b osteosarcoma on the knee (about 5cm). He had limb sparing surgery and systematic Chemotherapy (Adryomicin, cisplatin and methotrexade). He has had his first 3 month check up and every test is clear, his hair is growing back and he is feeling better and better. The surgery revealed that the chemo had killed >95% of the cancer...When I read the survival rates, they are quite low...Is this accurate, is this one of worst cancers, can we be optimistic, is there any vitamin/food that can help...He is doing so well that I cannot imagine this thing coming back....Thank you