Mother Ami Dean was taken to Stafford Hospital on 30th October 2010.
The twins she gave birth to were 13 weeks premature.
After their condition deteriorated, they were transferred to University Hospital of North Staffordshire but died on November 1st.
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Remaining dry overnight with lengthy clear periods.
Leah Washington, 17, had to have her left leg amputated after being trapped for hours on The Smiler rollercoaster at the theme park.
Fine and dry this evening and overnight with showers on Sunday afternoon.