Doctors should go to work, says William Hague
The government is urging doctors not to take industrial action on Thursday.
Some GPs are planning not to do non-emergency work as part of a dispute over proposed cuts to their pensions.
The Foreign Secretary William Hague, standing in for David Cameron at Prime Minister's Question Time, urged them to reconsider.
He also tackled questions on NHS waiting lists put to him by deputy Labour leader Harriet Harman.