We present data from a preferential looking method to investigate when infants have mapped singular and plural markers in English onto the semantic distinction between singleton sets and sets with more than 1 individual. Twentyto 36-month-old children heard sentences that marked number in 1 of 2 ways: (a) redundantly with verb morphology, lexical quantifiers, and noun morphology (“Look, there A...

Picture books are ubiquitous in young children's lives and are assumed to support children's acquisition of information about the world. Given their importance, relatively little research has directly examined children's learning from picture books. We report two studies examining children's acquisition of labels and facts from picture books that vary on two dimensions: iconicity of the picture...

OBJECTIVE To describe the circumstances, medical complications, and outcomes of children exposed to a transdermal nicotine patch (TNP). DESIGN Prospective case series; postmarketing surveillance study over a 24-month period. SETTING Thirty-four United States poison centers. Patients. Children 0 to 15 years old exposed to a TNP. INTERVENTIONS None. OUTCOME MEASURES Exposure circumstances...