* A study in the Journal of Allergy and Clinical Immunology (1992: 90) found that use of beta2-agonists may mask a need for anti inflammatory treatment in airway hyperresponsiveness. Reporting the results, Medical Monitor (5 February) concluded: Caution is necessary in using long acting members of this class of drug."
* Two more controlled studies put the boot in against disposable and soft contact lenses. Both a London and Chicago controlled study found a high incidence of ulcerative keratitis among users of both kinds of lenses, with the most problems among those using disposables. The least risky were found to be daily wear rigid gas permeable lenses. JAMA, 3 February 1993 and 24 February 1993.
* Overly sensitive equipment has begun to alarm doctors by picking up blood flow sounds they believe are symptoms of a problem. Doctors are assured in a review in the British Heart Journal that the "regurgitation" noises detected by their doppler ultrasound equipment is perfectly normal. British Medical Journal, 13 February 1993.
* One in three Americans has sought out alternative therapies, particularly for chronic health problems. If this is extrapolated to the entire population, Americans made more visits to alternative therapists (425 million) than to orthodox doctors (325 million)last year. New England Journal of Medicine, 28 January 1993.