South African Deputy President Kgalema Motlanthe (R), flanked by Surgeon-General Vejaynand Ramlakan, addresses a news conference on the health of former South African President Nelson Mandela at the Milpark Hospital in Johannesburg January 28, 2011. Former South African President Nelson Mandela left hospital on Friday after treatment for an acute respiratory infection, officials said. REUTERS/Pool (SOUTH AFRICA - Tags: POLITICS)