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Kinga Polanska, Anna Krol, Pawel Kaluzny, Danuta Ligocka, Karolina Mikolajewska, Seif Shaheen, Robert Walton and Wojciech Hanke
A reliable assessment of smoking status has significant public health implications and is essential for research purposes. The aim of this study was to determine optimal saliva cotinine cut-off values for smoking during pregnancy. The analyses were based...
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