Denis Leonov is undergoing supportive chemotherapy. His condition is stable, but not so good. He is irritable  and does not eat and sleep well. The boy is nervous and cries a lot. Lately, Denis is at home. His parents bought him a computer and the boy plays computer games and watches cartoons. Because of the bad weather he does not go outside a lot.
 
Denis still will have more than six month of chemo, and he needs to take pills every day. At present, he is running out of the medication, and we need to help him.
 
Denis is six years old. He was got  cancer when nobody was expecting it. At some time, Denis had high fever and his lymph nodes got enlarged, and it all looked like a common cold. Yet after several visits to hospitals he was diagnosed with leukemia.