NHS England will roll out Martha's Rule from April to give patients and families access to a rapid review if they are worried about a condition getting worse.

Merope Mills spoke to Today in September about her daughter Martha, who died just before her 14th birthday from sepsis following an abdominal injury. In the inquest after her death, the coroner ruled that Martha could have survived if she’d received better care.

Now Martha’s Rule is coming into force. Merope Mills speaks to Today's Martha Kearney about plans for it come into effect in at least 100 hospitals in England.