A demonstrator holds a placard in support of a 24-hour strike by junior doctors over pay and conditions outside King's College Hospital in London

Demonstrators hold placards in support of a 24-hour strike by junior doctors over pay and conditions outside King's College Hospital in London

Demonstrators at Manchester Royal Infirmary during a 24-hour strike by junior doctors over pay and conditions in Manchester, northwest England

Demonstrators stand with placards at Salford Royal Hospital during a 24-hour strike over pay and conditions in Manchester, northwest England