Quds city, Jan 10 (SPA) -- Israeli Prime Minister Ariel Sharon remained in a critical but stable condition on Tuesday, a hospital official said, as doctors pressed ahead with efforts to bring him out of an induced coma after a stroke. "The prime minister's condition remains unchanged ... Today doctors will continue treatment begun yesterday," Ron Kromer, spokesman for Hadassah hospital, told reporters, according to a report of Reuters. Sharon's two sons played Mozart symphonies at his bedside in an effort to elicit a response, the Maariv daily newspaper reported. His medical team carried on gradually weaning him off anesthesia, a process expected to take days. "We cannot say he is out of danger," chief surgeon Felix Umansky told reporters on Monday, adding Sharon had not yet opened his eyes or regained consciousness.