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2. Apple Inc apple app store http://www.apple.com/uk/iphone/built-in-apps/app-store.html
3. Google Google Android Market https://play.google.com/store/apps/collection/topselling-free?hl=en
4. Technology: a smarter way to practise;Nolan;BMJ,2011
5. A survey of mobile phone usage by health professionals in the UK http://www.d4.org.uk/research/survey-mobile-phone-use-health-professionals-UK.pdf