A PERFECT storm engulfing the Scottish NHS “goes straight to the door” of the SNP Health Secretary, opposition parties said today.

Under-fire Shona Robison faced renewed calls to quit today as new figures showed the extent of the crisis, with spiralling bed-blocking and operation cancellations.

And in March just 87.9 per cent of casualty patients were processed within four hours, way below the government’s target of 95 per cent.