Title:Prolonged fecal shedding of Shiga toxin-producing Escherichia coli among children attending day-care centers in Argentina / Excreción prolongada de Escherichia coli productor de toxina Shiga en niños que concurren a jardines maternales de Argentina
Title:Chemoselective preparation of 1,1-diacetates from aldehydes, mediated by a Keggin heteropolyacid under solvent free conditions at room temperature