After undergoing a lung operation, the pope said he will resume his duties gradually. Pope greets crowds in St. Key points and original sources are listed below.

• After undergoing a lung operation, the pope said he will resume his duties gradually. There is no "clinical reason" for his South America trip not to go ahead, his surgeon said.S1

• Pope greets crowds in St. Peter’s Square after undergoing surgery for lung cancer five days agoS2