FILE - In this Thursday, June 27, 2013, file photo, granddaughters Zaziwe Dlamini-Manaway, center, and Tukwini Mandela, center left, are swamped by the media after collecting flowers from well wishers outside the Mediclinic Heart Hospital where former South African President Nelson Mandela is being treated in Pretoria, South Africa. President Jacob Zuma canceled a trip to Mozambique on Thursday in an indication of heightened concern about Mandela, whose health deteriorated last weekend. (AP Photo/Themba Hadebe, File)

Associated Press
FILE - In this Thursday, June 27, 2013, file photo, granddaughters Zaziwe Dlamini-Manaway, center, and Tukwini Mandela, center left, are swamped by the media after collecting flowers from well wishers outside the Mediclinic Heart Hospital where former South African President Nelson Mandela is being treated in Pretoria, South Africa. President Jacob Zuma canceled a trip to Mozambique on Thursday in an indication of heightened concern about Mandela, whose health deteriorated last weekend. (AP Photo/Themba Hadebe, File)
FILE - In this Thursday, June 27, 2013, file photo, granddaughters Zaziwe Dlamini-Manaway, center, and Tukwini Mandela, center left, are swamped by the media after collecting flowers from well wishers outside the Mediclinic Heart Hospital where former South African President Nelson Mandela is being treated in Pretoria, South Africa. President Jacob Zuma canceled a trip to Mozambique on Thursday in an indication of heightened concern about Mandela, whose health deteriorated last weekend. (AP Photo/Themba Hadebe, File)
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