Doctors in the occupied West Bank are struggling to save Palestinians from permanent disability after being shot in an upsurge of violence linked to Israeli raids targeting Palestinian militants.At Rafidia Surgical Hospital in Nablus, in the northern West Bank, a teenager with bandaged legs was carried up the stairs by another boy.He had been shot below the knee in overnight clashes between Israeli forces and Palestinian residents of Balata, a refugee camp on the edge of the city.