A poster with a picture of former South African President Nelson Mandela in Bloemfontein, South Africa, Saturday, Dec. 15, 2012, ahead of the ruling party elective conference where the current President Jacob Zuma will fight for a second term as head of the ruling party. Mandela on Friday, Dec 14 2012 entered the seventh day of a hospital stay for a lung infection as questions grow about where he is receiving treatment. The 94-year-old patriarch of South Africa's democracy has been hospitalized since Saturday, first undergoing tests and later being diagnosed with the ailment. (AP Photo/Themba Hadebe)

Associated Press
A poster with a picture of former South African President Nelson Mandela in Bloemfontein, South Africa, Saturday, Dec. 15, 2012, ahead of the ruling party elective conference where the current President Jacob Zuma will fight for a second term as head of the ruling party. Mandela on Friday, Dec 14 2012 entered the seventh day of a hospital stay for a lung infection as questions grow about where he is receiving treatment. The 94-year-old patriarch of South Africa's democracy has been hospitalized since Saturday, first undergoing tests and later being diagnosed with the ailment.  (AP Photo/Themba Hadebe)
A poster with a picture of former South African President Nelson Mandela in Bloemfontein, South Africa, Saturday, Dec. 15, 2012, ahead of the ruling party elective conference where the current President Jacob Zuma will fight for a second term as head of the ruling party. Mandela on Friday, Dec 14 2012 entered the seventh day of a hospital stay for a lung infection as questions grow about where he is receiving treatment. The 94-year-old patriarch of South Africa's democracy has been hospitalized since Saturday, first undergoing tests and later being diagnosed with the ailment. (AP Photo/Themba Hadebe)
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