46 , 71 , 72 A comparison of the prevalence of neurological symptoms found an increasing trend in reported symptoms during each year from 1972 to 1976 among Michigan farm residents and farm product consumers ( n = 644 ), in comparison with stable symptom prevalence among Wisconsin farm residents ( n = 153 ); significant differences in symptom prevalence between the Michigan and Wisconsin gro
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A State of the Science Review of Human Health Effects of the Michigan Polybrominated Biphenyl Contamination after Five Decades.
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