The deposed Egyptian President Hosni Mubarak and his two sons have pleaded not guilty during their first court appearance in Cairo on charges of corruption and ordering the killing of hundreds of demonstrators. Mr. Mubarak who is 83 and has complained of poor health, remained on a stretcher throughout the proceedings inside a cage in the dock. The case has been adjourned till the middle of this month. Outside the court a crowd of opposition supporters gathered early to call for revenge against their former President clashing with hundreds of riot police.