Attempts are under way to avert a second doctors' strike in England, as hospitals battle to rearrange thousands of operations postponed because of the contract dispute.
A 24-hour walkout by junior doctors ended at 08:00 GMT, and conciliation service Acas said fresh talks would start on Thursday.
The next proposed strike is a 48-hour one beginning on 26 January.
About 3,300 operations due to take place on Tuesday were postponed.
That is one in 10 of the operations scheduled for that day. Several hundred others have been cancelled in the days before and after the action.
NHS England said about 10,000 junior doctors had reported for duty out of 26,000 scheduled to work the day shift on Tuesday - although many of those had agreed in advance to come in to make sure emergency cover was provided