1. Francis lost part of a lung as a teenager due to an infection.

2. The bullet went into his chest and came out by his left lung, under his heart.

3. At three years after a lung transplant, about a third of the people who got them are dead.

4. He is being treated for a lung infection.

5. Mr Mandela was receiving care at his Johannesburg home when his lung problems flared up again.

6. Mandela was being treated for a lung infection.

7. Mandela was taken to a hospital on June 8 for treatment for a recurring lung infection.