Israel is allowing six children to leave the besieged Gaza Strip to pursue treatment from cancer and other chronic illnesses, a rare occurrence since the closure of Rafah border crossing on 6 May. The children and their companions, who arrived at Nasser Medical Complex in Khan Younis from northern Gaza ahead of their departure, are to leave this morning via Kerem Shalom border crossing. Head of paediatric department at Nasser Medical Complex Dr Ahmed Al-Farra told The New Arab that the six children vary in conditions between cancer of the blood, brain, testicle, and a mass in the abdomen, in a…