Junior doctors have voted to strike for five days from 29 April over an employment row.
The doctors' union and district health boards are at an impasse in their row over the doctors' employment deal which expired late February.
The doctors cancelled a strike planned for 15-18 April over technical problems, before voting on a five-day strike starting 29 April.
Union senior advocate David Munro says it's not about pay but about changes the DHBs want to make to the now-expired employment agreement.
"The clawbacks that the DHBs have put on the table they are showing no sign at this stage of removing. And that is a simple impact that could see a much swifter move to settlement of this long-running dispute," he said.
Mr Munro said Canterbury had been omitted from the strike because the hospital is still under pressure from the March 15 terrorist attack.
The Resident Doctors Association announced the result of their latest strike ballot this afternoon.