Helena Laurell

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Eighteen healthy volunteers of both sexes, aged 20-34, were tested in the morning while undertaking real car driving avoidance manoeuvres and during monotonous simulated driving after 1 and 3 nights of medication with triazolam 0.25 mg, nitrazepam 5 mg or placebo. The study was a double-blind, randomized, cross-over study, where a minimum of 7 days wash-out(More)
The aim was to study hang-over effects from alcohol in simulated driving. The driving task was to negotiate 20 km in as short time as possible. The road had many curves, horizontal and vertical, with ice friction at irregular intervals. 24 healthy volunteers, aged 22-46, with valid driving licenses, all screened as moderate drinkers, participated as(More)
Background. The aims were to evaluate the importance of the formal competence of the emergency department physician, the patient's time of arrival at the emergency department, and the use of a structured schedule for investigation of patients with acute abdominal pain. Methods. Patients attending the Mora Hospital with acute abdominal pain from 1997 to 2000(More)
The purpose of this article is to assess the diagnostic accuracy of C-reactive protein (CRP) and white blood cell (WBC) count to discriminate between urgent and nonurgent conditions in patients with acute abdominal pain at the emergency department, thereby guiding the selection of patients for immediate diagnostic imaging.Data from 3 large published(More)
Eighteen healthy volunteers of both sexes, aged 20-35 years, were tested in the morning after three nights of medication with brotizolam 0.25 mg, nitrazepam 5 mg or placebo on a monotonous simulated driving task. The effect measures were subsidiary auditory reaction time and time outside road. Measurements of self-rated alertness were carried out as well.(More)
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