<style face="normal" font="default" size="100%">Predictors of vitamin D biochemical status in a large sample of middle-aged male smokers in Finland</style>

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0<style face="normal" font="default" size="100%">Predictors of vitamin D biochemical status in a large sample of middle-aged male smokers in Finland</style><style face="normal" font="default" size="100%">Predictors of vitamin D biochemical status in a large sample of middle-aged male smokers in Finland</style>