Defendants argued that natural had no ascertainable meaning, but the government has an interest in regulating a word with an underdeterminate meaning
all studies were included in sex-based analysis 14-16,20,23,25,28,48,50-55 , two studies were in race/ethnicity 21,24 , and one study in education-based subgroup analysis 24 (Table 1)
"Our results indicate excessive use of cigarettes, or chronic exposure to their compounds, affects visual discrimination, supporting the existence of overall deficits in visual processing with tobacco addiction," said co-author Steven Silverstein, director of research at Rutgers University Behavioral Health Care
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