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BACKGROUND Although environmental toxins, including pesticides, are suspected of contributing to the risk of amyotrophic lateral sclerosis (ALS), no data exist from large prospective investigations. This study assessed the association between exposure to chemicals and risk of ALS in a prospective cohort study. METHODS The relation between self-report of(More)
BACKGROUND Several dietary factors have been associated with risk of amyotrophic lateral sclerosis (ALS) in case-control studies, but no prospective studies have investigated diet and ALS. METHODS We prospectively assessed the association of selected foods and beverages with ALS mortality among participants of the Cancer Prevention Study II, a cohort of(More)
Occupational exposures are suspected of contributing to the risk of amyotrophic lateral sclerosis (ALS), but results of epidemiologic studies have been inconsistent. The authors prospectively assessed the relation between occupation and ALS mortality among more than 1 million participants in the Cancer Prevention Study II of the American Cancer Society.(More)
Smokers have a decreased risk of Parkinson's disease (PD), but this association could simply be the result of a common factor causing both PD and aversion to smoking. Smoking behavior in industrialized nations has changed dramatically over the second half of the 20th century, with diverging patterns in male and female smoking rates. We therefore examined(More)
OBJECTIVE Word recognition is a basic component in a comprehensive hearing evaluation, but data are lacking for listeners speaking two languages. This study obtained such data for Russian natives in the US and analysed the data using the perceptual assimilation model (PAM) and speech learning model (SLM). DESIGN Listeners were randomly presented 200 NU-6(More)
A new flip-chip solder technology has been developed for the precision self-alignment of an optoelectronic module without using mechanical stops. A main feature of the technology is the controlled self-alignment sequence: laser is aligned to a polymer waveguide in the lateral and vertical directions, then it slowly makes a contact with the waveguide in the(More)
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