Luisa Esther Gutiérrez García

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A method for the determination of cocaine (COC) and benzoylecgonine (BZE) in human urine using a column-switching liquid chromatography system is reported. A homemade precolumn (20 mm x 4.6 mm i.d.)(More)
BACKGROUND Elective caesarean section before 39 weeks gestational age (GA) has been associated with a higher incidence of iatrogenic respiratory distress and pneumothorax in term newborn babies,(More)
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