Doubts have shrouded whether Greece will follow its creditors' orders on budget cuts despite Eurozone finance minister approval for a four-month bailout extension, wrote The Wall Street Journal.HSBC's boss Stuart Gulliver has been summoned by MPs to give evidence alongside the company's chairman on Wednesday, according to The Guardian.David Cameron has announced that Britain will deploy troops in Ukraine to help train soldiers fighting Russian separatists, The Telegraph reported.A new daily pill will reduce the taker's risk of getting HIV by 90% and should be distributed to the gay community according to researchers, The Times wrote on Wednesday.A Google-backed start-up called Magic Leap has planned to develop a "techno-biology" headset expected to replace smartphones and PCs as the next "everyday computing" device, wrote the Financial Times.UK prime minister David Cameron has been called to make Boris Johnson the centre of the election campaign amid speculative concerns the Conservative party needs more positivity, wrote The Times.The House of Lords has approved the clinical conception of three-person babies, and UK facilities will be able to apply for licences in autumn 2015, The Guardian reported.