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Science News for January 20, 2003


Supply and demand and illicit drugs

A recent Canadian Medical Association Journal investigation found that a massive heroin seizure had no impact on drug prices or overdose rates. Heroin prices actually decreased after the shipment was intercepted, raising questions about the effectiveness of supply-side interventions in controlling Canada's illicit drug epidemic.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJan 20, 2003

Shaken baby syndrome in Canada

A study of Canadian children with shaken baby syndrome found nearly 20% died, 55% suffered lasting neurologic injuries, and 65% experienced visual impairment. The authors estimate at least 40 cases occur annually, calling for further research on prevention strategies.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJan 20, 2003

Early-warning procedure can help more melanoma patients than previously thought

A new study reveals that sentinel lymph node mapping can be safely performed on patients with melanoma in the delicate head and neck area, allowing for early detection of cancer spread. The technique has been shown to accurately stage patients and identify those who need further treatment, potentially improving survival rates.

SourceMichigan Medicine - University of Michigan·JournalArchives of Otolaryngology - Head and Neck Surgery·DateJan 20, 2003