Yellow statues, designed to make people think about how they use Accident and Emergency services, have begun a tour across north London.
The figures each represent a different injury or illness - and are displayed alongside information on the best NHS services for treating that problem.
Doctors say many people wait for hours in A&E when they could have got quicker treatment closer to home.
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Members of the GMB union are protesting at changes to pay arrangements, including moving from weekly to monthly pay.
Transport for London gave away more than 22,000 travel passes last year under the 'Staff Nominee' scheme.
The horrific attack happened at around 10:45pm on a grass area near Barge Walk, in Kingston, south west London.