The Association, which publishes the British Medical Journal and two career supplements, was at the centre of the attacks on 7 July, with the bus blast in Tavistock Square taking place outside its headquarters.

Editorial staff were moved on the day after the attacks to premises in Old Street. According to BMJ senior production manager Catherine Harding-Wiltshire, staff were in constant contact with its printer Wyndeham Heron.

"Once they made sure we were alright, both sides looked into various scenarios to print the titles," she said. "We ended up using two sites Heron and Impact. It was a great achievement to get the titles out on time." The BMJ and the career supplements have a circulation of 130,000.