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Hello, I'm James Reynolds.
Welcome to the documentary from the BBC World Service.
In BBC Conversations, we bring people together to share their experiences.
This time, we hear from patients and doctors with first-hand knowledge of life-saving lung transplants.
Norway's royal family has revealed that its crown princess,
52-year-old Metta Madit, has undergone a successful lung transplant.
This major surgery was carried out to treat chronic pulmonary fibrosis.
That's a progressive lung disease, which was first diagnosed in the princess eight years ago.
Later, we'll hear from two physicians who work closely with lung transplant patients and their families.
But our first conversation is with women who have experienced the operation for themselves.
Natalia Maiva lives in Sofia in Bulgaria.