Mari, a three year-old leukaemia patient on an IV drip, is pushed in a wheelchair along a corridor by her grandmother in the onco-hematology department of the Iashvili Central Children's Hospital in Tbilisi April 7, 2011. The hospital is the only institution to treat children with leukaemia in Georgia, hospital officials said. REUTERS/David Mdzinarishvili (GEORGIA - Tags: HEALTH SOCIETY)