Life in London's East End in the 1950s was tough. The brothels of Cable Street, the Kray brothers and gang warfare, the meths drinkers in the bombsites- this was the world Jennifer Worth entered when she became a midwife at the age of twenty-two. Babies were born in slum conditions, often with no running water. Funny, disturbing and moving, Call the Midwife brings to life a world that has now changed beyond measure.   All shop sales support the Florence Nightingale Museum, a registered charity, and its works.