It should prevent four in 10 cases of the disease, but it is the first "real world" trial.
Survivors say the pain of bereavement can easily push people into mental illness without proper support.
A report shows 8% fewer patients die within 30 days if they get surgery within 24 hours.
How did she compete while pregnant?
The plant-based diet, beloved by celebrities, has got the experts worried
Will Trump empower anti-vaccine parents?
Misery of families of people infected with HIV and hepatitis by NHS treatments
'Making my invisible illness visible'
'I was sterilised against my will'
Forensic scientists and fire investigators have warned that smoke alarms may not wake children.