García-Rico, Leticia Serum matrix metalloproteinase-9 in children exposed to arsenic from playground dust at elementary schools in Hermosillo, Sonora, Mexico. [electronic resource] - Environmental geochemistry and health Feb 2020 - 499-511 p. digital Publication Type: Journal Article ISSN: 1573-2983 Standard No.: 10.1007/s10653-019-00384-6 doi Subjects--Topical Terms: AdolescentArsenic--toxicityChildChild, PreschoolCross-Sectional StudiesDust--analysisEnvironmental BiomarkersEnvironmental Exposure--analysisEnvironmental Pollutants--toxicityFemaleHumansMaleMatrix Metalloproteinase 9--bloodMexicoSchools