A group of mothers have met with their MP and health officials to keep up pressure and find out what's caused birth defects in their children.
At least eight babies on one street were born with their bowel outside their abdomen. Their mothers are convinced a toxic substance is to blame.
Experts have failed to find the cause, but tests on a site near Waterdales in the Northfleet area of Gravesend have found high levels of a chemical banned by the EU in 2004.
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