冬眠するクマ(クマ科) : 腎臓専門医の興味をかきたてる代謝機能の魔術

In this group of young children, hair nicotine was a more precise biomarker of exposure to ETS than urine cotinine levels, using questionnaire reports as the reference. Both biomarkers indicate that smoking outside the house limits ETS exposure of children but does not eliminate it.