FTSE slips on poor earnings from AstraZeneca, RBS

(Reuters) - UK blue-chip shares slipped further on Friday, weighed down by underwhelming results from AstraZeneca and RBS, while investors remained unsettled due to concerns over the impact of the coronavirus on the global economy.The FTSE 100 index was 0.4% lower by 0805 GMT and was set to end the week with a near 1% fall, but the midcap bourse rose 0.1% as it drew strength from the pound. As the epidemic in China shows no signs of peaking, global markets may look to central banks to step in..