The largest ever study into the administration of blood thinning drugs like Warfarin has concluded that dosages calculated by computer are at least as safe and reliable as those provided by trained medical professionals.

Each year, tens of thousands of people receive a dreaded diagnosis: intracerebral hemorrhage, or a "bleeding stroke." Caused by a burst blood vessel in the brain, ICH kills a quarter of patients in two days, and up to half of them within 30 days. And there's no approved specific medical treatment for it -- though people can recover with specialized hospital care.